Source Code Repos
- https://bitbucket.org/ - Unlimited public and private git repos for small teams
- https://github.com - Free for an unlimited number of public repositories
- https://about.gitlab.com/ - Unlimited public and private git repos with unlimited collaborators
- https://hub.jazz.net/ - Unlimited public repos, private repos free for up to 3 accounts.
Tools for teams & Collaboration
- http://appear.in/ - One click video conversations, for free
- http://www.hall.com/ - Free for unlimited users with some feature limitations
- https://www.flowdock.com/ - Chat and inbox, free for teams of 5 or less
- https://slack.com - Free for unlimited users with some feature limitations
- https://hipchat.com - Free for unlimited users with some feature limitations
- https://gitter.im - "Chat, for GitHub". Unlimited public & private rooms, free for teams of up to 25
- http://www.google.com/hangouts/ - One place for all your Conversations, for free (Need Google Account)
- https://kato.im - Team Chat & Collaboration, free for unlimited users with some feature limitations
- http://seafile.com/ - Private or cloud storage, file sharing, sync, discussions. Private version is full. Cloud version has just 1 GB.
- https://sameroom.io - Free for unlimited users with some feature limitations
- https://yammer.com/ - Private social network standalone or for M$ Office 365. Free, just a bit less admin tools and users management features.
- https://www.blockspring.com/ - Share scripts with anyone on your team: cross language and with spreadsheet users. Free for 5 million runs a month.
Code Quality
- http://tachikoma.io - Dependency Update for Ruby, Node.js, Perl projects - free for Open Source
- https://landscape.io/ - Code Quality for Python projects, free for Open Source
- https://codeclimate.com/ - Automated code review, free for Open Source
- https://houndci.com/ - Comments on github commits about code quality - free for Open Source
- https://coveralls.io/ - Display test coverage reports - free for open source
- https://scrutinizer-ci.com/ - Continuous inspection platform - free for Open Source
- https://codecov.io/ - Code coverage tool (SaaS), free for 1 private project and no restrictions for publics repos
- https://insight.sensiolabs.com/ - Code Quality for PHP/Symfony projects, free for Open Source
Code Search and Browsing
- https://sourcegraph.com/ - Java, Go, Python, Node.js, etc., code search/cross-references - free for open source
- https://searchcode.com/ - comprehensive text-based code search - free for open source
CI / CD
- https://codeship.com/ - 100 private builds / month, 5 private projects. Unlimited for Open Source
- https://circleci.com - Free for one concurrent build
- https://travis-ci.org - Free for public Github repositories.
- http://wercker.com/ - Free for public and private repositories
- https://drone.io/ - CI platform that includes browser testing, free for Open Source
- https://semaphoreci.com/ - 100 private builds / month. Unlimited for Open Source.
- http://www.shippable.com/ - Free for 1 build container, private and public repos, unlimited builds.
- https://snap-ci.com - Free for public repositories, 1 build at the time
- http://www.appveyor.com/ - CD service for Windows. Free for open-source projects.
- Comparison of Continuous Integration services
- https://saucelabs.com/ - CI with scalable testing for mobile and web apps, free for Open Source
- http://ftploy.com/ - 1 project w/ unlimited deployments
- https://deployhq.com/ - 1 project w/ 10 daily deployments
- https://hub.jazz.net/ - 60 minutes of free build time / month.
Security and PKI
- http://vaddy.net - Continuous web security testing with continuous integration (CI) tools. 3 domains, 10 scan history for free
- https://www.globalsign.com/en/ssl/ssl-open-source/ - Free SSL certs for Open Source projects
- https://www.startssl.com/ - Free SSL certs
- https://stormpath.com/ - Free user management, authentication, social login, and SSO.
- https://auth0.com/ - Hosted free for development SSO
- https://getclef.com/ - New take on auth unlimited free tier for anyone not using premium features
- https://ringcaptcha.com/ - Tools to use phone number as id, available for free
- https://www.ssllabs.com/ssltest/ - Very deep analysis of the configuration of any SSL web server
- https://qualys.com/forms/freescan/owasp/ - Find web app vulnerabilities, audit for OWASP Risks
- alienvault.com ThreatFinder - Uncovers compromised systems in your network
- https://duosecurity.com - Two-factor authentication (2FA) for website or app. Free 10 users, all authentication methods, unlimited, integrations, hardware tokens.
Management Systems
- https://opbeat.com/ - Release, deploy, monitor. Free for 3 users
Log Management
- https://papertrailapp.com/ - 48 hours search, 7 day archive, 100MB/month
- https://logentries.com/ - Free up to 5GB/month with 7 day retention
- https://www.loggly.com/ - Free for a single user, see the
liteoption - http://sematext.com/logsene - Free for 1M logs, unlimited retention
Analytics
- http://www.splunk.com/en_us/products/splunk-cloud.html - Upload 5GB of data per day up to 28GB of total data stored
- https://parse.com - Unlimited free analytics
Monitoring
- https://www.thousandeyes.com - Network & user experience monitoring. 3 locations, plus 20 data feeds of major web services free.
- https://www.datadoghq.com/ - Free for up to 5 nodes
- http://www.stackdriver.com/ - Free for up to 10 nodes/services
- https://keymetrics.io/ - Free for 2 servers with 7 days data retention
- http://newrelic.com/ - Free with 24 hour data retention
- https://nodequery.com/ - Free basic server monitor up to 10 servers
- https://www.pingdom.com/free/ - 1 site free
- https://www.opsgenie.com/ - Alert management with mobile push. 600 free alerts for 2 users a month
- https://www.runscope.com/ - Monitor and log API usage. Single user 10,000 request/month free
- http://www.circonus.com/ - Free for 20 metrics
- https://uptimerobot.com/ - Website monitoring, 50 monitors free
- https://www.statuscake.com/ - Website monitoring, unlimited tests free with limitations
- http://www.boundary.com/ - Free 1 second resolution for up to 10 servers
- https://ghostinspector.com/ - Free website and web application monitoring. Single user, 100 test runs per month
- http://java-monitor.com/ - Free monitoring of JVM's and uptime
- http://sematext.com/spm - Free for 24h metrics, unlimited number of servers, 10 custom metrics, 500K custom metrics data points, unlimited dashboards, users, etc.
- https://sealion.com/ - Free up to 2 servers, 3 days data retention, graphs and raw command output history (
top,ps,ifconfig,netstat,iostat,free, custom, etc.) - https://www.stathat.com - Get started with ten stats for free, no expiration.
- https://www.skylight.io - Free for first 100k requests
Crash / Exception handling
- https://rollbar.com/ - Exception and error monitoring, free plan - 5000 errors/month, unlimited users, 30 days retention.
- https://bugsnag.com/ - Free for up to 2000 errors a month after the initial trial
- https://airbrake.io/ - Free for 1 project, 1 user, 2 errors per minute, 2 day retention
- http://getsentry.com/ - Sentry tracks app exceptions in realtime, has a small free plan
Search
- https://www.algolia.com - Hosted search-as-you-type (instant). Free hacker plan up to 1,000 documents and 50,000 operations. Bigger free plans available for community/open source projects.
- https://swiftype.com - hosted search solution (API and crawler). Free for a single search engine with up to 1000 documents. Free upgrade to Premium level for open-source projects.
- https://bonsai.io - Free 1GB memory and 1GB storage.
- http://www.searchly.com - Free 2 Indices and 5MB storage.
- http://www.sparkpost.com/ - First 10,000 emails per month are free
- http://www.mailgun.com/ - First 10,000 emails per month are free
- http://mailchimp.com/ - Send 12,000 emails to 2,000 subscribers for free
- https://sendloop.com/ - 2,000 subscribers and 10,000 email delivery every month is free
- http://sendgrid.com/ - 400 emails per day for free
- http://mandrill.com/ - First 12,000 emails are free
- https://www.phplist.com/ - Hosted version allow 300 mails per month for free
- https://www.mailjet.com/ - 6000 mails per month for free
- https://www.sendinblue.com/ - 9000 mails per month for free
- https://mailtrap.io - fake SMTP server for development, free plan with 1 inbox, 50 messages, no team members, 2 emails/sec, no forward rules
- https://mailstache.io - 4 Mailboxes @ 1GB each for up to 2 custom domains.
CDN and Protection
- http://www.cloudflare.com/ - Basic service is free, good for a blog
- http://www.bootstrapcdn.com/ - CDN for bootstrap, bootswatch and font awesome
- https://surge.sh - Zero-bullshit, single–command, bring your own source control web publishing CDN.
- https://cdnjs.com/ - CDN for JavaScript libraries, CSS libraries, SWF, images, etc!
- http://www.jsdelivr.com/ - A free super-fast CDN for developers and webmasters
- https://developers.google.com/speed/libraries/ - The Google Hosted Libraries is a content distribution network for the most popular, open-source JavaScript libraries.
- https://www.asp.net/ajax/cdn - The Microsoft Ajax Content Delivery Network (CDN) hosts popular third party JavaScript libraries such as jQuery and enables you to easily add them to your Web application
- https://toranproxy.com/ - Proxy for Packagist and GitHub. Never fail CD. Free for personal use, 1 developer, no support.
PaaS
- http://aws.amazon.com/free/ - AWS Free Tier - Free for 12 months
- https://cloud.google.com/appengine/ - Google App Engine gives 28 instance hours free, 1Gb NoSQL Database and more.
- https://www.engineyard.com - Engine Yard provides 500 free hours
- http://azure.microsoft.com/ - MS Azure gives $200 worth of free usage for a trial
- http://hpcloud.com/ - $300 credit over 90 days.
- https://appharbor.com/ - A .Net PaaS that provides 1 free worker
- https://www.heroku.com/ - Host your apps in the cloud, free for single process apps
- https://www.firebase.com/ - Build realtime apps, free plan has 50 Max Connections, 5 GB Data Transfer, 100 MB Data Storage. 1 GB Hosting Storage and 100 GB Hosting Transfer.
- https://bluemix.net/ - IBM PaaS with a monthly free allowance
- https://www.openshift.com/ - RedHat OpenShift offers 3 free hosted apps
- https://bitnami.com/ - One free small app
- https://scalingo.com - Free Tier, up to 3 apps, 1 container each, combined with data store addons free tier
- https://algorithmia.com - Host algorithms for free - includes 10,000 credits (seconds of on-demand execution time) free
- https://bigml.com/ - Hosted machine learning algorithms. Unlimited free tasks for development, limit of 16MB data per task
- https://www.activestate.com/stackato/ - Enterprise-hardened Cloud Foundry PaaS from ActiveState, for private, public and hybrid cloud, free up to 20GB
- http://www.outsystems.com/ - Enterprise web development PaaS for on-premise or cloud, free "personal environment" offering allows for unlimited code and up to 1GB database.
- https://platform.telerik.com/ - Build and deploy mobile applications using Javascript. Free plan has 100 MB Data Storage, 1GB File storage, 5GB Bandwidth, 1 million push notifications for BaaS offering, 100 active devices for analytics.
BaaS
- https://www.parse.com - Mobile backends, free plan has 30 requests per second, with 20 GB of file and database storage, as well as push notifications for up to 1,000,000 unique recipients.
- http://appacitive.com/ - Mobile backend, free for the first 3 months with 100k API calls,Push notifications.
- https://www.contentful.com - Content as a Service. Content Management & Delivery APIs in the cloud. 3 users, 3 spaces (repositories) and 1,000,000 API requests per month for free.
- http://konacloud.io Web and Mobile Backend as a Service, with 5 GB free account.
- https://www.blockspring.com/ - Cloud functions. Free for 5 million runs a month.
Web Hosting
- https://www.simplybuilt.com - SimplyBuilt offers free website building and hosting for open source projects (http://www.simplybuilt.com/explore/free-websites-for-open-source-projects). Simple alternative to GitHub Pages.
- http://www.devport.co - Turn GitHub projects, Apps, and websites into a personal developer portfolio.
IaaS
- https://exoscale.ch/ - Free resources for Open Source projects
- https://developer.rackspace.com/ - Rackspace Cloud gives $50/month for 12 months
- https://cloud.google.com/compute/ - Google Compute Engine gives $300 over 60 days
- https://cloud.google.com/container-engine/ - Google Container Engine for run Docker containers(Alpha). Pricing: same of Google Compute Engine.
- https://nsone.net/ - Data Driven DNS, automatic traffic management, 1M free Queries
DBaaS
- https://mongolab.com/ - MongoDB as a service (500mb free)
- https://cloudant.com/ - Hosted database from IBM, free if usage is below $50/month
- https://realm.io - Free to use even for commercial projects, under Apache 2.0 License
- https://orchestrate.io/ - 1 application free
- https://redislabs.com/redis-cloud - Redis as a Service (25 mb free)
- https://www.backand.com/ - Back-end as a service (for AngularJS)
- http://www.zenginehq.com - Build business workflow apps in minutes - free for single users
- https://parsehub.com/ — Extract data from dynamic sites, turn dynamic websites into APIs, 5 projects free.
- https://import.io/ - Easily turn websites into APIs, completely free for life.
- https://redsmin.com/ - Online real-time monitoring and administration service for Redis, 1 Redis instance free
STUN, WebRTC, Web Socket Servers and other Routers
- https://pusher.com. Hosted Web Sockets broker. Free for up to 20 simultaneous connections and 100k messages a day.
- stun:stun.l.google.com:19302 - Google STUN
- stun:global.stun.twilio.com:3478?transport=udp - Twilio STUN
- https://www.segment.com. Hub to translate and route events to other third party services. 100k events a month free.
Issue tracking / Project management
- https://www.pivotaltracker.com/community/public-projects - Pivotal Tracker. Free for public projects.
- https://www.atlassian.com/opensource/overview - Free Jira etc for Open Source projects
- https://kanbanflow.com/ - Board based project management. Free (premium version with more options).
- https://kanbanpad.com/ - Board based project management. Free (premium version with more options).
- https://kanbanery.com/ - Board based project management. Free for 2 users (premium tiers with more options).
- https://zenhub.io/ - The only project management solution inside GitHub. Free for public repos, OSS, and non-profits.
- https://trello.com/ - Board based project management. Free
- https://waffle.io/ - Board based project management solution from your existing GitHub Issues. Free for open-source.
- https://huboard.com/ - Instant project management for your GitHub issues. Free for open-source.
- https://taiga.io/ - Project management platform for startups and agile developers. Free for open-source.
- https://www.jetbrains.com/youtrack/buy/open_source_incloud.jsp - Free hosted YouTrack (InCloud) for FOSS projects (private projects free for 10 users: https://www.jetbrains.com/youtrack/buy/)
- https://github.com - In addition to its git storage facility, github offers basic issue tracking
- https://asana.com - Free for private project with collaborators.
- http://www.acunote.com/ - Free project management and SCRUM software for up to 5 team members.
- http://gliffy.com/ - Online diagrams: flowchart, UML, wireframe... Also Plugins for Jira & Confluence. 5 diagrams and 2 MB free.
- https://cacoo.com/ - Online diagrams in real time: flowchart, UML, network. Free max. 15 users/diagram, 25 sheets.
- https://hub.jazz.net/ - IBM Bluemix's project management services. Free for public projects, free for up to 3 users for private projects.
Storage and Media Processing
- https://www.aerofs.com/ - P2P file syncing, free for up to 30 users
- http://cloudinary.com - Image upload, powerful manipulations, storage, and delivery for sites and apps, with libraries for Ruby, Python, Java, PHP, Objective-C and more. Perpetual free tier includes 7500 images/month, 2gb storage, 5gb bandwidth.
- https://plot.ly - graph and share your data. Free tier includes unlimited public files and 10 private files.
- https://transloadit.com - Handles file uploads & encoding of video, audio, images, documents. Free for open source & other do-gooders. Commercial applications get the first GB free for testdriving.
- https://cartodb.com - create maps and geospatial APIs from your data and public data
Package Build Systems
- https://build.opensuse.org/ - package build service for multiple distros (SUSE, EL, Fedora, Debian etc.)
- https://copr.fedoraproject.org/ - mock-based RPM build service for Fedora and EL
- https://help.launchpad.net/Packaging - Ubuntu and Debian build service
IDE and Code Editing
- https://c9.io - IDE in a browser. Incorporates an Ubuntu virtual machine and in-browser terminal access. Integrates with github and bitbucket, but also adds SFTP and generic Git access.
- https://koding.com - IDE in a browser. Features: Full sudo access - VMs hosted on Amazon EC2 - SSH Access - Real EC2 VM, no LXCs/hypervising - Custom sub-domains - Publicly accessible IP - Ubuntu 14.04 - IDE/Terminal/Collaboration
- https://www.nitrous.io - Private Linux instance(s) with interactive collaboration {More Details}
- http://visualstudio.com/free - Fully-featured IDE with thousands of extensions, cross-platform app development (Microsoft extensions available for download for iOS and Android), desktop, web and cloud development, multi-language support (C#, C++, JavaScript, Python, PHP and more).
- https://cloud.sagemath.com - Collaborative mathematics-oriented IDE in a browser, with support for Python, LaTeX, IPython Notebooks, etc.
- https://wakatime.com - quantified self metrics about your coding activity, using text editor plugins - Limited plan for free.
- https://codenvy.com/ - IDE in a browser, collaborative, git integration, build and run your app in customizable Docker-based runners (free 512Mb RAM to distribute between you runners), pre-integrated deploy to Google Apps.
- https://apiary.io/ - Collaborative design API with instant API mock and generated documentation (Free for unlimited API blueprints and unlimited user with one admin account and hosted documentation)
- https://www.jetbrains.com/products.html - Productivity tools, IDEs and deploy tools. Free license for students, teachers, open source projects, and user groups.
Analytics, Events and Statistics
- https://www.librato.com/ - Event/Data collection service with analysis and graphs. Limited plan for free.
- https://google.com/analytics/ - Google Analytics
- https://heapanalytics.com/ - Automatically captures every user action in iOS or web apps. Free for up to 5,000 visits per month.
- http://sematext.com/search-analytics - Free for up to 50K actions/month, 1 day data retention, unlimited dashboards, users, etc.
- https://usabilityhub.com - Test designs and mockups on real people, track visitors. Free for one user, unlimited tests.
International Mobile number verification API and SDK
- https://www.cognalys.com - Freemium mobile number verification through an innovative and relaible method than using SMS gateway. Free accounts will have 70 Tries and 50 verifications per day . {Signup}
Payment / Billing Integration
- https://www.braintreepayments.com - Credit Card, Paypal, Venmo, Bitcoin, Apple Pay (, ...) integration. Single and Recurrent Payments. First $ 50.000 are free of charge.
Other Packs
- https://education.github.com/pack - As long as you're a student at a recognized university
Docker Related
Alternate container hosting
- https://quay.io/ - Unlimited free public containers
Vagrant Related
Vagrant box indexes
- https://atlas.hashicorp.com/boxes/search - HashiCorp's index of boxes
- http://vagrantbox.es - An alternative public box index
Data mining
- http://www.monkeylearn.com/ - Text mining in the cloud, 1,000 queries for free per month.