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Type to search Free for developers free-for.dev free-for.dev Developers and Open Source authors now have a massive amount of services o ering free tiers, but Table of Contents it can be hard to find them all to make informed decisions. Major Cloud Providers This is a list of so ware (SaaS, PaaS, IaaS, etc.) and other o erings that have free tiers for Source Code Repos developers. APIs, Data and ML The scope of this particular list is limited to things that infrastructure developers (System Artifact Repos Administrator, DevOps Practitioners, etc.) are likely to find useful. We love all the free services out Tools for Teams and Collaboration there, but it would be good to keep it on topic. It's a bit of a grey line at times so this is a bit opinionated; do not be o ended if I do not accept your contribution. CMS Code Quality This list is the result of Pull Requests, reviews, ideas and work done by 500+ people. You too can help by sending Pull Requests to add more services or by remove ones whose o erings have Code Search and Browsing changed or been retired. CI and CD NOTE: This list is only for as-a-Service o erings, not for self-hosted so ware. For a service to be Testing eligible it has to o er a free tier and not just a free trial. If the free tier is time-bucketed it has to be Security and PKI for at least a year. We also consider the free tier from a security perspective, so SSO is fine but I will not accept services that restrict TLS to paid-only tiers. Management System Messaging Table of Contents Log Management Major Cloud Providers' Always-Free Limits Translation Management Analytics, Events and Statistics APIs, Data and ML Monitoring Artifact Repos Crash and Exception Handling BaaS Type to search CDN and Protection CI and CD Free for developers CMS Code Quality free-for.dev Code Search and Browsing Table of Contents Crash and Exception Handling Data Visualization on Maps Major Cloud Providers DBaaS Source Code Repos Design and UI Dev Blogging Sites APIs, Data and ML DNS Artifact Repos Docker Related Email Tools for Teams and Collaboration Font CMS Forms IaaS Code Quality IDE and Code Editing Code Search and Browsing International Mobile Number Verification API and SDK CI and CD Issue Tracking and Project Management Log Management Testing Management Systems Security and PKI Messaging and Streaming Miscellaneous Management System Monitoring Messaging Other Free Resources PaaS Log Management Package Build System Translation Management Payment and Billing Integration Monitoring Screenshot APIs Search Crash and Exception Handling Security and PKI Type to search Source Code Repos Storage and Media Processing Free for developers STUN, WebRTC, Web Socket Servers and Other Routers Testing free-for.dev Tools for Teams and Collaboration Table of Contents Translation Management Vagrant Related Major Cloud Providers Visitor Session Recording Source Code Repos Web Hosting Commenting Platforms APIs, Data and ML Browser based hardware emulation Artifact Repos Tools for Teams and Collaboration Major Cloud Providers CMS Google Cloud Platform Code Quality Code Search and Browsing App Engine - 28 frontend instance hours per day, 9 backend instance hours per day Cloud Firestore - 1GB storage, 50,000 reads, 20,000 writes, 20,000 deletes per day CI and CD Compute Engine - 1 non-preemptible f1-micro, 30GB HDD, 5GB snapshot storage (restricted Testing to certain regions) Cloud Storage - 5GB, 1GB network egress Security and PKI Cloud Shell - Web-based Linux shell/basic IDE with 5GB of persistent storage. 60 hours limit Management System per week Messaging Cloud Pub/Sub - 10GB of messages per month Cloud Functions - 2 million invocations per month (includes both background and HTTP Log Management invocations) Translation Management Cloud Run - 2 million requests per month, 360,000 GB-seconds memory, 180,000 vCPU- seconds of compute time, 1 GB network egress from North America per month Monitoring Google Kubernetes Engine - No cluster management fee for one zonal cluster. Each user Crash and Exception Handling node is charged at standard Compute Engine pricing BigQuery - 1 TB of querying per month, 10 GB of storage each month Type to search Cloud Build - 120 build-minutes per day Cloud Source Repositories - Up to 5 Users, 50 GB Storage, 50 GB Egress Free for developers Full, detailed list - https://cloud.google.com/free free-for.dev Amazon Web Services Table of Contents Amazon DynamoDB - 25GB NoSQL DB Major Cloud Providers Amazon Lambda - 1 Million requests per month Amazon SNS - 1 million publishes per month Source Code Repos Amazon Cloudwatch - 10 custom metrics and 10 alarms APIs, Data and ML Amazon Glacier - 10GB long-term object storage Amazon SQS - 1 million messaging queue requests Artifact Repos Amazon CodeBuild - 100min of build time per month Tools for Teams and Collaboration Amazon Code Commit - 5 active users per month Amazon Code Pipeline - 1 active pipeline per month CMS Full, detailed list - https://aws.amazon.com/free/ Code Quality Microso Azure Code Search and Browsing Virtual Machines - 1 B1S Linux VM, 1 B1S Windows VM CI and CD App Service - 10 web, mobile or API apps Testing Functions - 1 million requests per month Security and PKI DevTest Labs - Enable fast, easy, and lean dev-test environments Active Directory - 500,000 objects Management System Active Directory B2C - 50,000 monthly stored users Messaging Azure DevOps - 5 active users, unlimited private Git repos Azure Pipelines — 10 free parallel jobs with unlimited minutes for open source for Linux, Log Management macOS, and Windows Translation Management Microso IoT Hub - 8,000 messages per day Load Balancer - 1 free public load balanced IP (VIP) Monitoring Notification Hubs - 1 million push notifications Crash and Exception Handling Bandwidth - 5GB egress per month Type to search Cosmos DB - 5GB storage and 400 RUs of provisioned throughput Static Web Apps — Build, deploy and host static apps and serverless functions, with free Free for developers SSL, Authentication/Authorization and custom domains Storage - 5GB LRS File or Blob storage free-for.dev Cognitive Services - AI/ML APIs (Computer Vision, Translator, Face detection, Bots...) with Table of Contents free tier including limited transactions Cognitive Search - AI-based search and indexation service, free for 10,000 documents Major Cloud Providers Azure Kubernetes Service - Managed Kubernetes service, free cluster management Source Code Repos Event Grid - 100K ops/month Full, detailed list - https://azure.microso .com/free/ APIs, Data and ML Artifact Repos Oracle Cloud Tools for Teams and Collaboration Compute - 2 VM.Standard.E2.1.Micro 1GB RAM Block Volume - 2 volumes, 100 GB total (used for compute) CMS Object Storage - 10 GB Code Quality Load balancer - 1 instance with 10 Mbps Databases - 2 DBs, 20 GB each Code Search and Browsing Monitoring - 500 million ingestion datapoints, 1 billion retrieval datapoints CI and CD Bandwidth - 10TB egress per month Testing Notifications - 1 million delivery options per month, 1000 emails sent per month Full, detailed list - https://www.oracle.com/cloud/free/ Security and PKI IBM Cloud Management System Messaging Cloud Functions - 5 million executions per month Object Storage - 25GB per month Log Management Cloudant database - 1 GB of data storage Translation Management Db2 database - 100MB of data storage API Connect - 50,000 API calls per month Monitoring Availability Monitoring - 3 million data points per month Crash and Exception Handling Log Analysis - 500MB of daily log Type to search Full, detailed list - https://www.ibm.com/cloud/free/ Alibaba Cloud Free for developers Compute - 1 ecs.t5-lc1m1.small for 12 months with 40 GB ultra cloud disk or SSD disk and 1 free-for.dev MB internet bandwidth. Table of Contents Function Compute - 1 million calls free each month, 400,000 GB-seconds free each month Major Cloud Providers API Gateway - For the 1st year you activate API Gateway, you get 1 million free calls each month. Source Code Repos .tech Domain Name - Free to use for one year APIs, Data and ML Full, detailed list - https://www.alibabacloud.com/campaign/free-trial Artifact Repos Tools for Teams and Collaboration Source Code Repos CMS bitbucket.org — Unlimited public and private Git repos for up to 5 users with Pipelines for CI/CD Code Quality chiselapp.com — Unlimited public and private Fossil repositories codebasehq.com — One free project with 100 MB space and 2 users Code Search and Browsing codeberg.org - Unlimited public and private Git repos CI and CD gitea.com - Unlimited public and private Git repos github.com — Unlimited public repositories and unlimited private repositories (with unlimited Testing collaborators) with Pipelines for CI/CD Security and PKI gitlab.com — Unlimited public and private Git repos with unlimited collaborators, with Management System Pipelines for CI/CD, and 10 GB space per repo ionicframework.com - Repo and tools to develop applications with Ionic, also you have an Messaging ionic repo Log Management NotABug — NotABug.org is a free-so ware code collaboration platform for freely licensed projects, Git-based Translation Management perforce.com — Free 1GB Cloud and Git, Mercurial, or SVN repositories. Monitoring pijul.com - Unlimited free and open source distributed version control system. Its distinctive feature is to be based on a sound theory of patches, which makes it easy to learn and use, and Crash and Exception Handling really distributed. Solves many problems of git/hg/svn/darcs. Type to search plasticscm.com — Free for individuals, OSS and nonprofit organizations projectlocker.com — One free private project (Git and Subversion) with 50 MB space Free for developers savannah.gnu.org - Serves as a collaborative so ware development management system for free So ware projects (for GNU Projects) free-for.dev savannah.nongnu.org - Serves as a collaborative so ware development management system Table of Contents for free So ware projects (for non-GNU projects) Major Cloud Providers Source Code Repos APIs, Data and ML APIs, Data and ML IP.City — 100 free IP geolocation requests per day Artifact Repos Abstract API — API suite for a variety of use cases including IP geolocation, gender detection or even email validation. Tools for Teams and Collaboration algorithmia.com — Host algorithms for free. Includes free monthly allowance for running CMS algorithms. Now with CLI support. Apify — Web scraping and automation platform that lets you create an API extracting websites Code Quality data. Free tier with 10k monthly crawls and 7 days data retention. Code Search and Browsing API Mocha - Completely free online API mocking for testing and prototyping. Make up to 500 requests per day, fully customizable API responses, download mock rules as a Postman CI and CD collection. Testing Atlas toolkit - Lightweight library to develop single-page web applications that are instantly Security and PKI accessible. Available for Java, Node.js, Perl, Python and Ruby. Beeceptor - Mock a rest API in seconds, fake API response and much more. Free 50 requests per Management System day, public dashboard, open endpoints (anyone having link to the dashboard can view requests Messaging and responses). bigml.com — Hosted machine learning algorithms. Unlimited free tasks for development, limit Log Management of 16 MB data/task. Translation Management Calendarific - Enterprise-grade Public holiday API service for over 200 countries. Free plan includes 1000 calls per month. Monitoring Crash and Exception Handling Clarifai — Image API for custom face recognition and detection. Able to train AI models. Free Type to search plan has 5000 calls per month. Cloudmersive — Utility API platform with full access to expansive API Library including Free for developers Document Conversion, Virus Scanning, and more with 800 calls/month. Colaboratory — Free web-based Python notebook environment with Nvidia Tesla K80 GPU. free-for.dev Collect2 — Create an API endpoint to test, automate, and connect webhooks. Free plan allows Table of Contents for two datasets, 2000 records, 1 forwarder, and 1 alert. CurrencyScoop - Realtime currency data API for fintech apps. Free plan includes 5000 calls per Major Cloud Providers month. Source Code Repos Datapane - API for building interactive reports in Python and deploying Python scripts and Jupyter Notebooks as self-service tools. APIs, Data and ML DB Designer — Cloud based Database schema design and modeling tool with a free starter plan Artifact Repos of 2 Database models and 10 tables per model. Diggernaut — Cloud based web scraping and data extraction platform for turning any website Tools for Teams and Collaboration to the dataset or to work with it as with an API. Free plan includes 5K page requests monthly. CMS Disease.sh — A free API providing accurate data for building the Covid-19 related useful Apps. dominodatalab.com — Data science with support for Python, R, Spark, Hadoop, MATLAB and Code Quality others. Code Search and Browsing dreamfactory.com — Open source REST API backend for mobile, web, and IoT applications. CI and CD Hook up any SQL/NoSQL database, file storage system, or external service and it instantly creates a comprehensive REST API platform with live documentation, user management,... Testing ETF Data API - Quality European ETF, ETN and ETC data, updated daily. The API o ers complete Security and PKI overview including sector, country, factor, dividend yield and valuations. Additionally basic information such as domicile, followed index, asset class, fee, currency, replication method, Management System distribution type and frequency. 50 free API calls per day. Messaging ExtendsClass - Free web-based HTTP client to send HTTP requests. FraudLabs Pro — Screen an order transaction for credit card payment fraud. This REST API will Log Management detect all possible fraud traits based on the input parameters of an order. Free Micro plan has Translation Management 500 transactions per month. Monitoring FreeGeoIP.app - Completely free Geo IP information (JSON, CSV, XML). No registration required, 15000 queries per hour rate limit. Crash and Exception Handling GeoDataSource — Location search service lookup for city name by using latitude and longitude Type to search coordinate. Free API queries up to 500 times per month. Hoppscotch - A free, fast, and beautiful API request builder. Free for developers Invantive Cloud — Access over 70 (cloud)platforms such as Exact Online, Twinfield, ActiveCampaign or Visma using Invantive SQL or OData4 (typically Power BI or Power Query). free-for.dev Includes data replication and exchange. Free plan for developers and implementation Table of Contents consultants. Free for specific platforms with limitations in data volumes. IP Geolocation — IP Geolocation API - Forever free plan for developers with 30k requests per Major Cloud Providers month (1k/day) limit. Source Code Repos IP2Location — Freemium IP geolocation service. LITE database is available for free download. Import the database in server and perform local query to determine city, coordinates and ISP APIs, Data and ML information. Artifact Repos IPinfo — Fast, accurate, and free (up to 100k/month) IP address data API. O ers APIs with details on geolocation, companies, carriers, IP ranges, domains, abuse contacts, and more. All Tools for Teams and Collaboration paid APIs can be trialed for free. CMS IPList — Lookup details about any IP address, such as Geo IP information, tor addresses, hostnames and ASN details. Free for personal and business users. Code Quality BigDataCloud - Provides fast, accurate and free (Unlimited or up to 10K-50K/month) APIs for Code Search and Browsing modern web like IP Geolocation, Reverse Geocoding, Networking Insights, Email and Phone CI and CD Validation, Client Info and more. IPTrace — An embarrassingly simple API that provides reliable and useful IP geolocation data Testing for your business. Security and PKI konghq.com/ — API Marketplace and powerful tools for private and public APIs. With the free tier, some features are limited such as monitoring, alerting and support. Management System MailboxValidator — Email verification service using real mail server connection to confirm valid Messaging email. Free API plan has 300 verifications per month. microlink.io – It turns any website into data such as metatags normalization, beauty link Log Management previews, scraping capabilities or screenshots as a service. 100 reqs/day every day free. Translation Management monkeylearn.com — Text analysis with machine learning, free 300 queries/month. Monitoring MockAPI — MockAPI is a simple tool that lets you easily mock up APIs, generate custom data, and preform operations on it using RESTful interface. MockAPI is meant to be used as a Crash and Exception Handling prototyping/testing/learning tool. 1 project/50 resources per project for free. Type to search myfakeapi.com — Free serverless API mocking service for developers. microenv.com — Create fake REST API for developers with possibility to generate code and app Free for developers in docker container. OCR.Space — An OCR API which parses image and pdf files returning the text results in JSON free-for.dev format. 25,000 requests per month free. Table of Contents OpenAPI3 Designer — Visually create Open API 3 definitions for free. parsehub.com — Extract data from dynamic sites, turn dynamic websites into APIs, 5 projects Major Cloud Providers free. Source Code Repos Pixela - Free daystream database service. All operations are performed by API. Visualization with heat maps and line graphs is also possible. APIs, Data and ML Postbacks - Request HTTP callbacks for a later time. 8,000 free requests on signup. Artifact Repos Postman — Simplify workflows and create better APIs – faster – with Postman, a collaboration platform for API development. Use the Postman App for free forever. Postman cloud features are Tools for Teams and Collaboration also free forever with certain limits. CMS ProxyCrawl — Crawl and scrape websites without the need of proxies, infrastructure or browsers. We solve captchas for you and prevent you being blocked. The first 1000 calls are free Code Quality of charge. Code Search and Browsing QuickMocker — Manage online fake API endpoints under your own subdomain, forward CI and CD requests to localhost URL for webhooks development and testing, use RegExp and multiple HTTP methods for URL path, prioritize endpoints, more than 100 shortcodes (dynamic or fake Testing response values) for response templating, import from OpenAPI (Swagger) Specifications in Security and PKI JSON format, proxy requests, restrict endpoint by IP address and authorization header. Free account provides 1 random subdomain, 10 endpoints, 5 RegExp URL paths, 50 shortcodes per Management System endpoint, 100 requests per day, 50 history records in requests log. Messaging RequestBin.com — Create a free endpoint to which you can send HTTP requests. Any HTTP requests sent to that endpoint will be recorded with the associated payload and headers so you Log Management can observe requests from webhooks and other services. Translation Management restlet.com — APISpark enables any API, application or data owner to become an API provider Monitoring in minutes via an intuitive browser interface. ROBOHASH - Web service to generate unique (cool :) images from any text. Crash and Exception Handling Scraper.AI - SaaS that turns any website into a consumable API for you to build on. Free 50 Type to search extractions and 10000 API calls / month. Scraper API — Cloud based web scraping API handles proxies, browsers, and CAPTCHAs. Scrape Free for developers any web page with a simple API call. Get started with 1000 free API calls/month. ScrapingAnt — Headless Chrome scraping API and free checked proxies service. Javascript free-for.dev rendering, premium rotating proxies, CAPTCHAs avoiding. Free plans available. Table of Contents ScraperBox — Undetectable web scraping API using real Chrome browsers and proxy rotation. Use a simple API call to scrape any web page. Free plan has 1000 requests per month. Major Cloud Providers ScrapingDog — Scrapingdog handles millions of proxies, browsers and CAPTCHAs to provide Source Code Repos you with HTML of any web page in a single API call. It also provides Web Scraper for Chrome & Firefox and a so ware for instant scraping demand. Free plans available. APIs, Data and ML scrapinghub.com — Data scraping with visual interface and plugins. Free plan includes Artifact Repos unlimited scraping on a shared server. ScrapingNinja — Handle JS rendering, Chrome Headless, Proxy rotation and CAPTCHAs solving Tools for Teams and Collaboration all in one place. The first 1000 are free of charge, no credit card required. CMS Sheetson - Instantly turn any Google Sheets into RESTful API. Free plan available. shrtcode API - Free URL Shortening API without authorisation and no request limits. Code Quality Similar Words API — An API to find similar words, has vocabulary of about 4Million words. Code Search and Browsing Sofodata - Create secure RESTful APIs from CSV files. Upload a CSV file and instantly access the CI and CD data via its API allowing faster application development. Free plan includes 2 APIs and 2,500 API calls per month. No credit card required. Testing tamber — Put deep-learning powered recommendations in your app. Free 5k monthly active Security and PKI users. Time Door - A time series analysis API. Management System Unixtime - Free API to convert Unixtime to DateTime and vice versa. Messaging Vattly - Highly available, fast and secure VAT validation API, that provides full European Union coverage. 10 free API calls per day. Log Management Webhook.site - Easily test HTTP webhooks with this handy tool that displays requests instantly. Translation Management wit.ai — NLP for developers. Monitoring wolfram.com — Built-in knowledge-based algorithms in the cloud. wrapapi.com — Turn any website into a parameterized API. 30k API calls per month. Crash and Exception Handling Zenscrape — Web scraping API with headless browsers, residentials IPs and simple pricing. 1000 Type to search free API calls/month, extra free credits for students and non-profits. ip-api — IP Geolocation API, Free for non-commercial use, no API key required, limited to 45 Free for developers req/minute from the same IP address for the free plan. WebScraping.AI - Simple Web Scraping API with built-in parsing, Chrome rendering and free-for.dev proxies. 5000 free API calls per month. Table of Contents Zipcodebase - Free Zip Code API, access to Worldwide Postal Code Data. 10000 free requests/month. Major Cloud Providers EVA - Free email validator API, which helps to identify whether an email is disposable and Source Code Repos having valid MX records. happi.dev - Freemium api services collection (Music, Exchange Rate, Key value store, Language APIs, Data and ML Detection, Password Generator, QRCode Generator, Lyrics). 8000 free API calls per month. Artifact Repos Tools for Teams and Collaboration Artifact Repos CMS bintray.com — JFrog Bintray hosts Open Source projects for free, and supports Docker, Maven, Code Quality NuGet, npm, Debian, RPM, Conan, Vagrant, Opkg, yum, and also home to JCenter the most Code Search and Browsing comprehensive collection of Maven artifacts. central.sonatype.org — The default artifact repository for Apache Maven, SBT and other build CI and CD systems. Testing cloudrepo.io - Cloud based, private and public, Maven and PyPi repositories. Free for open Security and PKI source projects. cloudsmith.io — Simple, secure and centralised repository service for Java/Maven, RedHat, Management System Debian, Python, Ruby, Vagrant +more. Free tier + free for open source. Messaging jitpack.io — Maven repository for JVM and Android projects on GitHub, free for public projects. packagecloud.io — Easy to use repository hosting for: Maven, RPM, DEB, PyPi and RubyGem Log Management packages (has free tier). Translation Management repsy.io — 1 GB Free private/public Maven Repository. Monitoring Crash and Exception Handling Type to search Tools for Teams and Collaboration 3Cols - A free cloud based code snippet manager for personal and collaborative code. Free for developers Bitwarden — The easiest and safest way for individuals, teams, and business organizations to store, share, and sync sensitive data. free-for.dev cally.com — Find the perfect time and date for a meeting. Simple to use, works great for small Table of Contents and large groups. Discord — Chat with public/private Rooms & VoIP Service. Free for unlimited users. Major Cloud Providers evernote.com — Tool for organizing information. Share your notes and work together with Source Code Repos others featurepeek.com - Cloud provider-agnostic front-end feature environments with team APIs, Data and ML collaboration tools built-in. Works with static and Dockerized front-ends. Free for public Artifact Repos repositories. Filestash — A Dropbox-like file manager that connects to a range of protocols and platforms: Tools for Teams and Collaboration S3, FTP, SFTP, Minio, Git, WebDAV, Backblaze, LDAP and more. CMS flock.com — A faster way for your team to communicate. Free Unlimited Messages, Channels, Code Quality Users, Apps & Integrations flowdock.com — Chat and inbox, free for teams up to 5 Code Search and Browsing GitDuck — Private live coding and remote pair programming for distributed teams. Open-source CI and CD tool gitter.im — Chat, for GitHub. Unlimited public and private rooms, free for teams up to 25 Testing hangouts.google.com — One place for all your conversations, for free, need a Google account Security and PKI helplightning.com — Help over video with augmented reality. Free without analytics, encryption, support Management System ideascale.com — Allow clients to submit ideas and vote, free for 25 members in 1 community Messaging Igloo — Internal portal for sharing documents, blogs and calendars etc. Free for up to 10 users. Keybase — Keybase is a cool FOSS alternative to Slack, it keeps everyone's chats and files safe, Log Management from families to communities to companies. Translation Management Google Meet — Use Google Meet for your business's online video meeting needs. Meet provides Monitoring secure, easy-to-join online meetings. meet.jit.si — One click video conversations, screen sharing, for free Crash and Exception Handling Microso Teams — Microso Teams is a chat-based digital hub that brings conversations, Type to search content, and apps together in one place all from a single experience. Free for up to 300 users. Miro - Scalable, secure, cross-device and enterprise-ready team collaboration whiteboard for Free for developers distributed teams. With freemium plan. Notion - Notion is a note-taking and collaboration application with markdown support that free-for.dev also integrates tasks, wikis, and databases. The company describes the app as an all-in-one Table of Contents workspace for note-taking, project management and task management. In addition to cross- platform apps, it can be accessed via most web browsers. Major Cloud Providers Nuclino - A lightweight and collaborative wiki for all your team's knowledge, docs, and notes. Source Code Repos Free plan with all essential features, up to 50 items, 5GB total storage. Pendulums - Pendulums is a free time tracking tool which helps you to manage your time in a APIs, Data and ML better manner with an easy to use interface and useful statistics. Artifact Repos Raindrop.io - Private and secure bookmarking app for macOS, Windows, Android, iOS and Web. Free Unlimited Bookmarks and Collaboration. Tools for Teams and Collaboration element.io — A decentralized and open source communication tool built on Matrix. Group CMS chats, direct messaging, encrypted file transfers, voice and video chats, and easy integration with other services. Code Quality Rocket.Chat - Shared inbox for teams, secure, unlimited and open source. Code Search and Browsing seafile.com — Private or cloud storage, file sharing, sync, discussions. Private version is full. CI and CD Cloud version has just 1 GB Slab — A modern knowledge management service for teams. Free for up to 10 users. Testing slack.com — Free for unlimited users with some feature limitations Security and PKI Spectrum - Create public or private communities for free. StatusPile - A status page of status pages. Track the status pages of your upstream providers. Management System talky.io — Free group video chat. Anonymous. Peer‑to‑peer. No plugins, signup, or payment Messaging required Te er - Bookmarking app with a powerful Slack integration. Free for open-source teams. Log Management TeleType — share terminals, voice, code, whiteboard and more. no sign-in required, end-to-end Translation Management encrypted collaboration for developers. Monitoring Tree Schema — Data catalog and metadata management with APIs to manage data lineage as code. Free for teams of up to 5 users. Crash and Exception Handling twist.com — An asynchronous-friendly team communication app where conversations stay Type to search organized and on-topic. Free and Unlimited plans available. Discounts provided for eligible teams. Free for developers typetalk.com — Share and discuss ideas with your team through instant messaging on the web or on your mobile free-for.dev Tugboat - Preview every pull request, automated and on-demand. Free for all, complimentary Table of Contents Nano tier for non-profits. whereby.com — One click video conversations, for free (formerly known as appear.in) Major Cloud Providers userforge.com - Interconnected online personas, user stories and context mapping. Helps keep Source Code Repos design and dev in sync, free for up to 3 personas and 2 collaborators. wistia.com — Video hosting with viewer analytics, HD video delivery and marketing tools to APIs, Data and ML help understand your visitors, 25 videos and Wistia branded player Artifact Repos yammer.com — Private social network standalone or for MS O ice 365. Free with a bit less admin tools and user management features Tools for Teams and Collaboration zoom.us — Secure Video and Web conferencing, add-ons available. Free limited to 40 minutes CMS Code Quality Code Search and Browsing CMS acquia.com — Hosting for Drupal sites. Free tier for developers. Free development tools (such as CI and CD Acquia Dev Desktop) also available Testing contentful.com — Headless CMS. Content management and delivery APIs in the cloud. Comes Security and PKI with one free micro space that includes 10 users, 5000 records, 24 Content Types, 2 locales. Cosmic — Headless CMS and API toolkit. Free personal plans for developers. Management System Crystallize — Headless PIM with ecommerce support. Built-in GraphQL API. Free version Messaging includes unlimited users, 1000 catalogue items, 5 GB/month bandwidth and 25k/month API calls. Log Management Forestry.io/ — Headless CMS. Give your editors the power of Git. Create and edit Markdown- Translation Management based content with ease. Comes with three free sites that includes 3 editors, Instant Previews. Integrates with blogs hosted on Netlify/GitHubpages/ elsewhere Monitoring Crash and Exception Handling kontent.ai - A Content-as-a-Service platform that gives you all the headless CMS benefits while Type to search empowering marketers at the same time. Developer plan provides 2 users with unlimited projects with 2 environments for each, 500 content items, 2 languages with Delivery and Free for developers Management API, and Custom elements support. Larger plans available to meet your needs. Prismic — Headless CMS. Content management interface with fully hosted and scalable API. free-for.dev The Community Plan provides 1 user with unlimited API calls, documents, custom types, assets, Table of Contents and locales. Everything that you need for your next project. Bigger free plans available for Open Content/Open Source projects. Major Cloud Providers sanity.io – Hosted backend for structured content with customizable MIT licensed editor built Source Code Repos with React. Unlimited projects. 3 users, 2 datasets, 500k API CDN requests, 5GB assets for free per project APIs, Data and ML sensenet - API-first headless CMS providing enterprise-grade solutions for businesses of all size. Artifact Repos The Developer plan provides 3 users, 500 content items, 3 built-in roles, 25+5 content types, fully accessible REST API, document preview generation and O ice Online editing. Tools for Teams and Collaboration GraphCMS - O ers free tier for small projects. GraphQL first API. Move away from legacy CMS solutions to the GraphQL native Headless CMS - and deliver omnichannel content API first. Code Quality Code Search and Browsing Code Quality CI and CD beanstalkapp.com — A complete workflow to write, review and deploy code), free account for 1 Testing user and 1 repository with 100 MB of storage Security and PKI browserling.com — Live interactive cross-browser testing, free only 3 minutes sessions with MS IE 9 under Vista at 1024 x 768 resolution Management System codacy.com — Automated code reviews for PHP, Python, Ruby, Java, JavaScript, Scala, CSS Messaging and Co eeScript, free for unlimited public and private repositories Codeac.io - Automated Infrastructure as Code review tool for DevOps integrates with GitHub, Log Management Bitbucket and GitLab (even self-hosted). In addition to standard languages, it analyzes also Translation Management Ansible, Terraform, CloudFormation, Kubernetes, and more. (open-source free) codeclimate.com — Automated code review, free for Open Source and unlimited organisation- Monitoring owned private repos (up to 4 collaborators). Also free for students and institutions. Crash and Exception Handling codecov.io — Code coverage tool (SaaS), free for Open Source and 1 free private repo Type to search CodeFactor — Automated Code Review for Git. Free version includes unlimited users, unlimited public repositories and 1 private repo. Free for developers codescene.io - CodeScene prioritizes technical debt based on how the developers work with the code and visualizes organizational factors like team coupling and system mastery. Free for Open free-for.dev Source. Table of Contents coveralls.io — Display test coverage reports, free for Open Source dareboost - 5 free analysis report for web performance, accessibility, security each month Major Cloud Providers deepcode.ai — DeepCode finds bugs, security vulnerabilities, performance and API issues based Source Code Repos on AI. DeepCode's speed of analysis allow us to analyse your code in real time and deliver results when you hit the save button in your IDE. Supported languages are Java, C/C++, APIs, Data and ML JavaScript, Python, and TypeScript. Integrations with GitHub, BitBucket and Gitlab. Free for Artifact Repos open source and private repos, free up to 30 developers. deepscan.io — Advanced static analysis for automatically finding runtime errors in JavaScript Tools for Teams and Collaboration code, free for Open Source CMS DeepSource - DeepSource continuously analyzes source code changes, finds and fixes issues categorized under security, performance, anti-patterns, bug-risks, documentation and style. Code Quality Native integration with GitHub, GitLab and Bitbucket. Code Search and Browsing eversql.com — EverSQL - The #1 platform for database optimization. Gain critical insights into CI and CD your database and SQL queries, auto-magically. gerrithub.io — Gerrit code review for GitHub repositories for free Testing gocover.io — Code coverage for any Go package Security and PKI goreportcard.com — Code Quality for Go projects, free for Open Source gtmetrix.com — Reports and thorough recommendations to optimize websites Management System houndci.com — Comments on GitHub commits about code quality, free for Open Source Messaging Imgbot — Imgbot is a friendly robot that optimizes your images and saves you time. Optimized images mean smaller file sizes without sacrificing quality. It's free for open source. Log Management resmush.it — reSmush.it is a FREE API that provides image optimization. reSmush.it has been Translation Management implemented on the most common CMS such as Wordpress, Drupal or Magento. reSmush.it is Monitoring the most used image optimization API with more than 7 billions images already treated, and is still Free of charge. Crash and Exception Handling insight.sensiolabs.com — Code Quality for PHP/Symfony projects, free for Open Source Type to search lgtm.com — Continuous security analysis for Java, Python, JavaScript, TypeScript, C#, C and C++, free for Open Source Free for developers reviewable.io — Code review for GitHub repositories, free for public or personal repos scan.coverity.com — Static code analysis for Java, C/C++, C# and JavaScript, free for Open free-for.dev Source Table of Contents scrutinizer-ci.com — Continuous inspection platform, free for Open Source shields.io — Quality metadata badges for open source projects Major Cloud Providers sonarcloud.io — Automated source code analysis for Java, JavaScript, C/C++, C#, VB.NET, PHP, Source Code Repos Objective-C, Swi , Python, Groovy and even more languages, free for Open Source SourceLevel — Automated Code Review and Team Analytics. Free for Open Source and APIs, Data and ML organizations up to 5 collaborators. Artifact Repos tachikoma.io — Dependency Update for Ruby, Node.js, Perl projects, free for Open Source Typo CI — Typo CI reviews your Pull Requests and commits for spelling mistakes, free for Open Tools for Teams and Collaboration Source. CMS webceo.com — SEO tools but with also code verifications and di erent type of advices zoompf.com — Fix the performance of your web sites, detailed analysis Code Quality Code Search and Browsing CI and CD Code Search and Browsing Testing codota.com — Codota helps developers create better so ware, faster by providing insights Security and PKI learned from all the code in the world. Plugin available. libraries.io — Search and dependency update notifications for 32 di erent package managers, Management System free for open source Messaging Namae - Search across various websites like github,gitlab,heroku,netlify and many more for availabilty of your project name. Log Management searchcode.com — Comprehensive text-based code search, free for Open Source Translation Management sourcegraph.com — Java, Go, Python, Node.js, etc., code search/cross-references, free for Open Source Monitoring Crash and Exception Handling tickgit.com — Surfaces TODO comments (and other markers) to identify areas of code worth Type to search returning to for improvement. CodeKeep - Google Keep for Code Snippets. Organize,Discover and share code snippets, Free for developers featuring a powerful code screenshot tool with preset templates and linking feature. free-for.dev Table of Contents CI and CD Major Cloud Providers AccessLint — AccessLint brings automated web accessibility testing into your development Source Code Repos workflow. It's free for open source and education purposes. appcircle.io — Automated mobile CI/CD/CT for iOS and Android with online device emulators. APIs, Data and ML 20 minutes build timeout (60 mins for Open Source) with single concurrency for free. Artifact Repos appveyor.com — CD service for Windows, free for Open Source bitrise.io — A CI/CD for mobile apps, native or hybrid. With 200 free builds/month 10 min build Tools for Teams and Collaboration time and two team members. OSS projects get 45 min build time, +1 concurrency and unlimited CMS team size. buddy.works — A CI/CD with 5 free projects and 1 concurrent runs (120 executions/month) Code Quality buddybuild.com — Build, deploy and gather feedback for your iOS and Android apps in one Code Search and Browsing seamless, iterative system circleci.com — Free for one concurrent build CI and CD cirrus-ci.org - Free for public GitHub repositories Testing codefresh.io — Free-for-Life plan: 1 build, 1 environment, shared servers, unlimited public repos Security and PKI codemagic.io - Free 500 build minutes/month codeship.com — 100 private builds/month, 5 private projects, unlimited for Open Source Management System deployhq.com — 1 project with 10 daily deployments (30 build minutes/month) Messaging drone - Drone Cloud enables developers to run Continuous Delivery pipelines across multiple architectures - including x86 and Arm (both 32 bit and 64 bit) - all in one place Log Management gitlab.com — Create pipelines directly from Git repositories using GitLab's CI service. 400 Translation Management mins/mo per top-level group ligurio/awesome-ci — Comparison of Continuous Integration services Monitoring Crash and Exception Handling scalr.com - Remote state & operations backend for Terraform with full CLI support, integration Type to search with OPA and a hierarchical configuration model. Free up to 5 users. semaphoreci.com — Free for Open Source, 100 private builds per month Free for developers shippable.com — 150 private builds/month, free for 1 build container, private and public repos Squash Labs — creates a VM for each branch and makes your app available from a unique URL, free-for.dev Unlimited public & private repos, Up to 2 GB VM Sizes. Table of Contents stackahoy.io — 100% free. Unlimited deployments, branches and builds styleci.io — Public GitHub repositories only Major Cloud Providers travis-ci.org — Free for public GitHub repositories Source Code Repos APIs, Data and ML Testing Artifact Repos Applitools.com — smart visual validation for web, native mobile and desktop apps. Integrates Tools for Teams and Collaboration with almost all automation solutions (like Selenium and Karma) and remote runners (Sauce CMS Labs, Browser Stack). free for open source. A free tier for a single user with limited checkpoints per week. Code Quality browserstack.com — Manual and automated browser testing, free for Open Source Code Search and Browsing checkbot.io — Browser extension that tests if your website follows 50+ SEO, speed and security best practices. Free tier for smaller websites. CI and CD crossbrowsertesting.com - Manual, Visual, and Selenium Browser Testing in the cloud - free Testing for Open Source Security and PKI cypress.io - Fast, easy and reliable testing for anything that runs in a browser. Cypress Test Runner is always free and open source with no restrictions and limitations. Cypress Dashboard Management System is free for open source projects for up to 5 users. Messaging everystep-automation.com — Records and replays all steps made in a web browser and creates scripts,... free with fewer options Log Management Gremlin — Gremlin's Chaos Engineering tools allow you to safely, securely, and simply inject Translation Management failure into your systems to find weaknesses before they cause customer-facing issues. Gremlin Free provides access to Shutdown and CPU attacks on up to 5 hosts or containers. Monitoring Crash and Exception Handling gridlastic.com — Selenium Grid testing with free plan up to 4 simultaneous selenium nodes/10 Type to search grid starts/4,000 test minutes/month percy.io - Add visual testing to any web app, static site, style guide, or component library. 10 Free for developers team members, Demo app and unlimited projects, 5,000 snapshots / month. reflect.run - Codeless automated tests for web apps. Tests can be scheduled in-app or executed free-for.dev from a CI/CD tool. Each test run includes a full video recording along with console and network Table of Contents logs. The free tier includes an unlimited number of saved tests, with 25 test runs per month and up to 3 users. Major Cloud Providers saucelabs.com — Cross browser testing, Selenium testing and mobile testing, free for Open Source Code Repos Source testingbot.com — Selenium Browser and Device Testing, free for Open Source APIs, Data and ML tesults.com — Test results reporting and test case management. Integrates with popular test Artifact Repos frameworks. Open Source so ware developers, individuals, educators, and small teams getting started can request discounted and free o erings beyond basic free project. Tools for Teams and Collaboration websitepulse.com — Various free network and server tools. CMS qase.io - Test management system for Dev and QA teams. Manage test cases, compose test runs, perform test runs, track defects and measure impact. The free tier includes all core Code Quality features, with 500Mb available for attachments and up to 3 users. Code Search and Browsing knapsackpro.com - Speed up your tests with optimal test suite parallelisation on any CI CI and CD provider. Split Ruby, JavaScript tests on parallel CI nodes to save time. Free plan for up to 10 minutes test files and free unlimited plan for Open Source projects. Testing Security and PKI Management System Security and PKI Messaging alienvault.com — Uncovers compromised systems in your network atomist.com — A quicker and more convenient way to automate a variety of development Log Management tasks. Now in beta. Translation Management auth0.com — Hosted free for development SSO. Up to 2 social identity providers for closed- source projects. Monitoring Crash and Exception Handling Authress — Authentication login and access control, unlimited identity providers for any Type to search project. Facebook, Google, Twitter and more. First 1000 API calls are free. bitninja.io — Botnet protection through a blacklist, free plan only reports limited information Free for developers on each attack cloudsploit.com — Amazon Web Services (AWS) security and compliance auditing and free-for.dev monitoring Table of Contents CodeNotary.io — Open Source platform with indelible proof to notarize code, files, directories or container Major Cloud Providers crypteron.com — Cloud-first, developer-friendly security platform prevents data breaches in Source Code Repos .NET and Java applications Dependabot Automated dependency updates for Ruby, JavaScript, Python, PHP, Elixir, Rust, APIs, Data and ML Java (Maven and Gradle), .NET, Go, Elm, Docker, Terraform, Git Submodules and GitHub Artifact Repos Actions. DJ Checkup — Scan your Django site for security flaws with this free, automated, checkup tool. Tools for Teams and Collaboration Forked from the Pony Checkup site. CMS duo.com — Two-factor authentication (2FA) for website or app. Free for 10 users, all authentication methods, unlimited, integrations, hardware tokens Code Quality Firebase Auth — Free end-to-end identity solution, email and password accounts, Google, Code Search and Browsing Twitter, Facebook, GitHub login, phone auth (up to 10k/month), and more. CI and CD foxpass.com — Hosted LDAP and RADIUS. Easy per-user logins to servers, VPNs and wireless networks. Free for 10 users Testing globalsign.com — Free SSL certificates for Open Source Security and PKI Have I been pwned? — REST API for fetching the information on the breaches. Internet.nl — Test for modern Internet Standards like IPv6, DNSSEC, HTTPS, DMARC, STARTTLS Management System and DANE Messaging Jumpcloud — Provides directory as a service similar to Azure AD, user management, single sign- on, and RADIUS authentication. Free for up to 10 users. Log Management keychest.net - SSL expiry management and cert purchase with an integrated CT database Translation Management letsencrypt.org — Free SSL Certificate Authority with certs trusted by all major browsers Monitoring LoginRadius — Managed User Authentication service for free. Email registration and 3 social providers. Crash and Exception Handling logintc.com — Two-factor authentication (2FA) by push notifications, free for 10 users, VPN, Type to search Websites and SSH meterian.io - Monitor Java, Javascript, .NET, Scala, Ruby and NodeJS projects for security Free for developers vulnerabilities in dependencies. Free for one private project, unlimited projects for open source. Mozilla Observatory — Find and fix security vulnerabilities in your site. free-for.dev Okta — User management, authentication and authorization. Free for up to 1000 monthly active Table of Contents users. onelogin.com — Identity as a Service (IDaaS), Single Sign-On Identity Provider, Cloud SSO IdP, Major Cloud Providers 3 company apps and 5 personal apps, unlimited users Source Code Repos opswat.com — Security Monitoring of computers, devices, applications, configurations,... Free 25 users and 30 days history users. APIs, Data and ML pyup.io — Monitor Python dependencies for security vulnerabilities and update them Artifact Repos automatically. Free for one private project, unlimited projects for open source. qualys.com — Find web app vulnerabilities, audit for OWASP Risks Tools for Teams and Collaboration report-uri.io — CSP and HPKP violation reporting CMS ringcaptcha.com — Tools to use phone number as id, available for free Shieldfy — Web application firewall and vulnerability detection for developers, free plan up to Code Quality 100k requests per month. Code Search and Browsing snyk.io — Can find and fix known security vulnerabilities in your open source dependencies. CI and CD Unlimited tests and remediation for open source projects. Limited to 200 tests/month for your private projects. Testing Sqreen — Application security monitoring and protection (RASP, WAF and more) for web Security and PKI applications and APIs. Free for 1 app and 3 million requests. ssllabs.com — Very deep analysis of the configuration of any SSL web server Management System StackHawk Automate application scanning throughout your pipeline to find and fix security Messaging bugs before they hit production. Unlimited scans and environments for a single app. Sucuri SiteCheck - Free website security check and malware scanner Log Management Protectumus - Free website security check, site antivirus and server firewall (WAF). Email and Translation Management SMS notifications for registered users. Monitoring TestTLS.com - Test a SSL/TLS service for secure server configuration, certificates, chains etc. Not limited to HTTPS. Crash and Exception Handling threatconnect.com — Threat intelligence: It is designed for individual researchers, analysts and Type to search organizations who are starting to learn about cyber threat intelligence. Free up to 3 Users tinfoilsecurity.com — Automated vulnerability scanning. Free plan allows weekly XSS scans Free for developers Ubiq Security — Encrypt and decrypt data with 3 lines of code and automatic key management. Free for 1 application and up to 1,000,000 encryptions per month. free-for.dev Virgil Security — Tools and services for implementing end-to-end encryption, database Table of Contents protection, IoT security and more in your digital solution. Free for applications with up to 250 users. Major Cloud Providers Virushee — Privacy-oriented file/data scanning powered by hybrid heuristic and AI-assisted Source Code Repos engine. Possible to use internal dynamic sandbox analysis. Limited to 50MB per file upload APIs, Data and ML Artifact Repos Management System Tools for Teams and Collaboration bitnami.com — Deploy prepared apps on IaaS. Management of 1 AWS micro instance free CMS jamf.com — Device management for iPads, iPhones and Macs, 3 devices free moss.sh - Help developers deploy and manage their web apps and servers. Free up to 25 git Code Quality deployments per month Code Search and Browsing runcloud.io - Server management focusing mainly on PHP projects. Free for up to 1 server. CI and CD Testing Messaging Security and PKI cloudamqp.com — RabbitMQ as a Service. Little Lemur plan: max 1 million messages/month, Management System max 20 concurrent connections, max 100 queues, max 10,000 queued messages, multiple nodes Messaging in di erent AZ's pusher.com — Realtime messaging service. Free for up to 100 simultaneous connections and Log Management 200,000 messages/day Translation Management scaledrone.com — Realtime messaging service. Free for up to 20 simultaneous connections and 100,000 events/day Monitoring synadia.com — NATS.io as a service. Global, AWS, GCP, and Azure. Free forever with 4k msg size, Crash and Exception Handling 50 active connections and 5GB of data per month. cloudkarafka.com - Free Shared Kafka cluster, up to 5 topics, 10MB data per topic and 28 days Type to search of data retention. Free for developers Log Management free-for.dev bugfender.com — Free up to 100k log lines/day with 24 hours retention Table of Contents humio.com — Free up to 2 GB/day with 7 days retention Major Cloud Providers logentries.com — Free up to 5 GB/month with 7 days retention Source Code Repos loggly.com — Free for a single user, see the lite option logz.io — Free up to 3 GB/day, 3 days retention APIs, Data and ML papertrailapp.com — 48 hours search, 7 days archive, 100 MB/month Artifact Repos sematext.com — Free up to 500 MB/day, 7 days retention splunk.com - Free for a single user, 500 MB/day Tools for Teams and Collaboration sumologic.com — Free up to 500 MB/day, 7 days retention CMS Code Quality Translation Management Code Search and Browsing crowdin.com — Unlimited projects, unlimited strings and collaborators for Open Source CI and CD lingohub.com — Free up to 3 users, always free for Open Source Testing localazy.com - Free for 1000 source language strings, unlimited languages, unlimited contributors, startup and open source deals Security and PKI localizely.com — Free for Open Source Management System Loco — Free up to 2000 translations, Unlimited translators, 10 languages/project, 1000 Messaging translatable assets/project oneskyapp.com — Limited free edition for up to 5 users, free for Open Source Log Management POEditor — Free up to 1000 strings Translation Management transifex.com — Free for Open Source webtranslateit.com — Free up to 500 strings Monitoring weblate.org — It's free for libre projects up to 10,000 string source for the free tier, and Crash and Exception Handling Unlimited Self-hosted on-premises. Type to search Monitoring Pingmeter.com - 5 uptime monitors with 10 minutes interval. monitor SSH, HTTP, HTTPS, and Free for developers any custom TCP ports. amixr.io - Developer-friendly alerting and on-call management with brilliant Slack Integration, free-for.dev API and Terraform. Free phone call, SMS, Telegram, Slack and E-Mail packages. Table of Contents apimetrics.io — Automated API Performance Monitoring, Testing and Analytics. Free Plan, manually make API calls and Run from their West Coast servers Major Cloud Providers appdynamics.com — Free for 24 hours metrics, application performance management agents Source Code Repos limited to one Java, one .NET, one PHP and one Node.js appneta.com — Free with 1-hour data retention APIs, Data and ML assertible.com — Automated API testing and monitoring. Free plans for teams and individuals. Artifact Repos bearer.sh - Automatically Monitor API Requests, Track Performance, Detect Anomalies and Fix Issues on your critical API Usage. Install the Bearer Agent for Free with 1 line of code. Tools for Teams and Collaboration blackfire.io — Blackfire is the SaaS-delivered Application Performance Solution. Free Hacker CMS plan (PHP only) Code Quality circonus.com — Free for 20 metrics cloudsploit.com — AWS security and configuration monitoring. Free: unlimited on-demand Code Search and Browsing scans, unlimited users, unlimited stored accounts. Subscription: automated scanning, API CI and CD access, etc. datadoghq.com — Free for up to 5 nodes Testing deadmanssnitch.com — Monitoring for cron jobs. 1 free snitch (monitor), more if you refer Security and PKI others to sign up elastic.co — Instant performance insights for JS developers. Free with 24 hours data retention Management System freeboard.io — Free for public projects. Dashboards for your Internet of Things (IoT) projects Messaging freshworks.com — Monitor 50 URLs at 1-minute interval with 10 Global locations and 5 Public status pages for Free Log Management ghostinspector.com — Free website and web application monitoring. Single user, 100 test Translation Management runs/month Monitoring gitential.com — So ware Development Analytics platform. Free: unlimited public repositories, unlimited users, free trial for private repos. On-prem version available for enterprise. Crash and Exception Handling Grafana Cloud - Grafana Cloud is a composable observability platform, integrating metrics and Type to search logs with Grafana. Free: 3 users, 10 dashboards, 100 alerts, metrics storage in Prometheus and Graphite (10,000 series, 14 days retention), logs storage in Loki (50 GB of logs, 14 days retention) Free for developers healthchecks.io — Monitor your cron jobs and background tasks. Free for up to 20 checks. inspector.dev - A complete Real-Time monitoring dashboard in less than one minute with free free-for.dev forever tier. Table of Contents instrumentalapp.com - Beautiful and easy-to-use application and server monitoring with up to 500 metrics and 3 hours of data visibility for free Major Cloud Providers keychest.net/speedtest - Independent speed test and TLS handshake latency test against Source Code Repos Digital Ocean letsmonitor.org - SSL monitoring, free for up to 5 monitors APIs, Data and ML loader.io — Free load testing tools with limitations Artifact Repos nixstats.com - Free for one server. E-Mail Notifications, public status page, 60 second interval and more. Tools for Teams and Collaboration nodequery.com — Free basic server monitors up to 10 servers CMS opsgenie.com — Powerful alerting and on-call management for operating always-on services. Free up to 5 users. Code Quality paessler.com — Powerful infrastructure and network monitoring solution including alerting, Code Search and Browsing strong visualization capabilities and basic reporting. Free up to 100 sensors. CI and CD pagertree.com - Simple interface for alerting and on-call management. Free up to 5 users. pingbreak.com — Modern uptime monitoring service. Check unlimited URLs and get downtime Testing notifications via Discord, Slack or email. Security and PKI sematext.com — Free for 24 hours metrics, unlimited number of servers, 10 custom metrics, 500,000 custom metrics data points, unlimited dashboards, users, etc. Management System sitemonki.com — Website, domain, Cron & SSL monitoring, 5 monitors in each category for free Messaging skylight.io — Free for first 100,000 requests (Rails only) speedchecker.xyz — Performance Monitoring API, checks Ping, DNS, etc. Log Management stathat.com — Get started with 10 stats for free, no expiration Translation Management statuscake.com — Website monitoring, unlimited tests free with limitations Monitoring statusgator.com — Status page monitoring, 3 monitors free Crash and Exception Handling thousandeyes.com — Network and user experience monitoring. 3 locations and 20 data feeds of Type to search major web services free uptimerobot.com — Website monitoring, 50 monitors free Free for developers uptimetoolbox.com — Free monitoring for 5 websites, 60 second intervals, public statuspage. zenduty.com — End-to-end incident management, alerting, on-call management and response free-for.dev orchestration platform for network operations, site reliability engineering and DevOps teams. Table of Contents Free for upto 5 users. newrelic.com — Observability platform built to help engineers create more perfect so ware. Major Cloud Providers From monoliths to serverless, you can instrument everything, then analyze, troubleshoot, and Source Code Repos optimize your entire so ware stack. Free tier o ers 100GB/month of free data ingest, 1 free full access user, and unlimited free basic users. APIs, Data and ML Artifact Repos Tools for Teams and Collaboration Crash and Exception Handling CMS bugsnag.com — Free for up to 2,000 errors/month a er the initial trial exceptionless — Real-time error, feature, log reporting and more. Free for 3k events per month/1 Code Quality user. Open source and easy to self-host for unlimited use. Code Search and Browsing honeybadger.io - Exception, uptime, and cron monitoring. Free for solo devs and open-source projects (12,000 errors/month). CI and CD logrocket.io - Logging and session replay for javascript apps. Free for 1,000 sessions a month, Testing 14 days retention Security and PKI rollbar.com — Exception and error monitoring, free plan with 5,000 errors/month, unlimited users, 30 days retention Management System sentry.io — Sentry tracks app exceptions in real-time, has a small free plan. Free for 5k errors Messaging per month/ 1 user, unrestricted use if self-hosted Log Management Translation Management Search Monitoring algolia.com — Hosted search-as-you-type (instant). Free hacker plan up to 10,000 documents Crash and Exception Handling and 100,000 operations. Bigger free plans available for community/Open Source projects bonsai.io — Free 1 GB memory and 1 GB storage Type to search searchly.com — Free 2 indices and 20 MB storage pagedart.com - AI search as a service the free tier includes 1000 Documents, 50000 searches. Free for developers Larger free tiers are possible for worthwhile projects. free-for.dev Table of Contents Email Major Cloud Providers 10minutemail - Free, temporary email for testing. Source Code Repos AnonAddy - Open-source anonymous email forwarding, create unlimited email aliases for free biz.mail.ru — 5,000 mailboxes with 25 GB each per custom domain with DNS hosting APIs, Data and ML Bump - Free 10 Bump email addresses, 1 custom domain Artifact Repos Burnermail – Free 5 Burner Email Addresses, 1 Mailbox, 7 day Mailbox History Buttondown — Newsletter service. Up to 1,000 subscribers free Tools for Teams and Collaboration cloudmersive.com — Email validation and verification API for developers, 2,000 free API CMS requests/month Contact.do — Contact form in a link (bitly for contact forms) - totally free! Code Quality debugmail.io — Easy to use testing mail server for developers Code Search and Browsing elasticemail.com — 100 free emails/day. 1,000 emails for $0.09 through API (pay as you go). forwardemail.net — Free email forwarding for custom domains. Create and forward an CI and CD unlimited amount of email addresses with your domain name. Testing ImprovMX – Free email forwarding Security and PKI inumbo.com — SMTP based spam filter, free for 10 users kickbox.io — Verify 100 emails free, real-time API available Management System mailazy.com — 250 emails/day free Messaging mail-tester.com — Test if email's dns/spf/dkim/dmarc settings are correct, 20 free/month mailboxlayer.com — Email validation and verification JSON API for developers. 1,000 free API Log Management requests/month Translation Management mailcatcher.me — Catches mail and serves it through a web interface mailchimp.com — 2,000 subscribers and 12,000 emails/month free Monitoring MailerLite.com — 1,000 subscribers/month, 12,000 emails/month free Crash and Exception Handling mailinator.com — Free, public, email system where you can use any inbox you want Type to search mailjet.com — 6,000 emails/month free (200 emails daily sending limit) mailkitchen — Free for life without commitment, 10,000 emails/month, 1,000 emails/day Free for developers Mailnesia - Free temporary/disposable email, which auto visit registration link. mailsac.com - Free API for temporary email testing, free public email hosting, outbound free-for.dev capture, email-to-slack/websocket/webhook (1,500 monthly API limit) Table of Contents mailtrap.io — Fake SMTP server for development, free plan with 1 inbox, 50 messages, no team member, 2 emails/second, no forward rules Major Cloud Providers mail7.io — Free Temp Email Addresses for QA Developers. Create email addresses instantly Source Code Repos using Web Interface or API mohmal.com — Disposable temporary email APIs, Data and ML moosend.com — Mailing list management service. Free account for 6 months for startups Artifact Repos Outlook.com - Free personal email and calendar pepipost.com — 30k emails free for first month, then first 100 emails/day free Tools for Teams and Collaboration phplist.com — Hosted version allow 300 emails/month free CMS postmarkapp.com - 100 emails/month free, unlimited DMARC weekly digests Sender Up to 15 000 emails/month - Up to 2 500 subscribers Code Quality sendgrid.com — 100 emails/day and 2,000 contacts free Code Search and Browsing sendinblue.com — 9,000 emails/month free CI and CD sendpulse.com — 50 emails free/hour, first 12,000 emails/month free socketlabs.com - 40k emails free for first month, then first 2000 emails/month free Testing sparkpost.com — First 500 emails/month free Security and PKI Substack — Unlimited free newsletter service. Start paying when you charge for it. temp-mail.io — Free disposable temporary email service with multiple emails at once and Management System forwarding Messaging testmail.app - Automate end-to-end email tests with unlimited mailboxes and a GraphQL API. 100 emails/month free forever, unlimited free for open source. Log Management tinyletter.com — 5,000 subscribers/month free Translation Management trashmail.com - Free disposable email addresses with forwarding and automatic address Monitoring expiration Validator.Pizza — Free API to detect disposable emails Crash and Exception Handling Verifalia — Real-time email verification API with mailbox confirmation and disposable email Type to search address detector; 25 free email verifications/day. verimail.io — Bulk and API email verification service. 100 free verifications/month Free for developers Yandex.Connect — Free email and DNS hosting for up to 1,000 users yopmail.fr — Disposable email addresses free-for.dev zoho.com — Free Webmail and collaboration for up to 5 users Table of Contents SimpleLogin – Open source, self-hostable email alias/forwarding solution. Free 5 Aliases, unlimited bandwith, unlimited reply/send. Free for educational sta s (student, researcher, etc). Major Cloud Providers Source Code Repos APIs, Data and ML Font Artifact Repos dafont - The fonts presented on this website are their authors' property, and are either freeware, shareware, demo versions or public domain. Tools for Teams and Collaboration Everything Fonts - O ers multiple tools; @font-face, Units Converter, Font Hinter and Font CMS Submitter. Font Squirrel - Freeware fonts that is licensed for commercial work. Hand-selected these Code Quality typefaces and presenting them in an easy-to-use format. Code Search and Browsing Google Fonts - Lots of free fonts that are easy and quick to install in a website via a download or a link to Google's CDN. CI and CD FontGet - Has a variety of fonts available to download and sorted neatly with tags. Testing Security and PKI Management System Forms Messaging 99inbound.com - Build forms and share them online. Get an email or Slack message for each submission. Free plan has 2 forms, 100 entries per month, basic email & Slack. Log Management Form.taxi — Endpoint for HTML forms submissions. With notifications, spam blocker and GDPR- Translation Management compliant data processing. Free plan for basic usage. Formcake.com - Form backend for devs, free plan allows unlimited forms, 100 submissions, Monitoring Zapier integration. No libraries or dependencies required. Crash and Exception Handling Formcarry.com - HTTP POST Form endpoint, Free plan allows 100 submissions per month. formingo.co- Easy HTML forms for static websites, get started for free without registering an Type to search account. Free plan allows 500 submissions per month, customizable reply-to email address. formlets.com — Online forms, unlimited single page forms/month, 100 submissions/month, Free for developers email notifications. formspark.io - Form to Email service, free plan allows unlimited forms, 500 submissions per free-for.dev month, support by Customer assistance team. Table of Contents Formspree.io — Send email using an HTTP POST request. Free tier limits to 50 submissions per form per month. Major Cloud Providers getform.io - Form backend platform for designers and developers, 1 form, 100 submissions, Source Code Repos Single file upload, 100MB file storage. Kwes.io - Feature rich form endpoint. Works great with static sites. Free plan includes up 1 APIs, Data and ML website with up to 50 submissions per month. Artifact Repos smartforms.dev - Powerful and easy form backend for your website, forever free plan allows 50 submissions per month, 100MB file storage, Zapier integration, CSV/JSON export, custom Tools for Teams and Collaboration redirect, custom response page, Telegram & Slack bot, single email notifications. CMS staticforms.xyz - Integrate HTML forms easily without any server side code for free. A er user submits the form an email will be sent to your registered address with form content. Code Quality Typeform.com — Include beautifully designed forms on websites. Free plan allows only 10 fields Code Search and Browsing per form and 100 responses per month. CI and CD WaiverStevie.com - Electronic Signature platform with a REST API. Receive notifications with webhooks. Free plan watermarks signed documents, but allows unlimited envelopes + Testing signatures. Security and PKI Wufoo - Quick forms to use on websites. Free plan has a limit of 100 submissions each month. Web3Forms - Contact forms for Static & JAMStack Websites without writing backend code. Free Management System plan allows Unlimited Forms, Unlimited Domains & 250 Submissions per month. Messaging Zoho Forms - with 40+ field types, customizable themes, situation-specific templates, and a simple user interface, helps you create beautiful, functional forms for all your needs Log Management Translation Management Monitoring CDN and Protection Crash and Exception Handling bootstrapcdn.com — CDN for bootstrap, bootswatch and fontawesome.io Type to search cdnjs.com — CDN for JavaScript libraries, CSS libraries, SWF, images, etc. Cloudflare Free for developers CDN along with free SSL Free DNS for unlimited number of domains free-for.dev Firewall rules and pagerules Table of Contents Analytics TryCloudflare — Expose local HTTP servers through Argo Tunnel to public. Major Cloud Providers ddos-guard.net — Free CDN, DDoS protection and SSL certificate Source Code Repos developers.google.com — The Google Hosted Libraries is a content distribution network for the most popular, Open Source JavaScript libraries APIs, Data and ML jare.io — CDN for images. 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CMS zonewatcher.com — Automatic backups and DNS change monitoring. 1 domain free huaweicloud.com – Free DNS hosting by Huawei Code Quality Hetzner – Free DNS hosting from Hetzner with API support Code Search and Browsing Glauca – Free DNS hosting for up to 3 domains and DNSSEC support CI and CD F5 – Free Anycast DNS hosting for primary zones. And free for secondary zones up to 1 domain and 3 million requests per month. Testing Security and PKI Management System IaaS Messaging backblaze.com — Backblaze B2 cloud storage. Free 10 GB (Amazon S3-like) object storage for unlimited time Log Management scaleway.com — S3-Compatible Object Storage. Free 75 GB storage and external outgoing Translation Management tra ic terraform.io — Terraform Cloud. Free remote state management and team collaboration for Monitoring teams up to 5 users. Crash and Exception Handling