The .NET Compiler Platform ("Roslyn") provides open-source C# and Visual Basic compilers with rich code analysis APIs.
Research platform for new language concepts and compiler technologies for Scala.
MonoDevelop is a cross platform IDE mostly aimed at Mono/.NET developers
https://github.com/orgs/solid/projects/2
Mantl is a modern platform for rapidly deploying globally distributed services
Our official community can be found at https://slack.ghost.org
Ansible is a radically simple IT automation platform that makes your applications and systems easier to deploy. Avoid writing scripts or custom code to deploy and update your applications— automate in a language that approaches plain English, using SSH, with no agents to install on remote systems.
Open source Platform as a Service (PaaS).
Main repository for the Cadasta platform, an online system for recording and managing land tenure information.
Welcome to the SecureDrop developer chatroom!
A platform to create, publish and edit sites
Next generation programming language, currently in development
An experimental Go cross platform UI library.
Cross platform parser for the Gherkin language. Used by Cucumber to parse .feature files.
An implementation of StyleCop rules using the .NET Compiler Platform
Famo.us is a JavaScript platform for everyone who wants to build beautiful experiences on any device
Cross platform GUI framework for desktop and mobile applications in .NET
A C++ / Python platform to perform parallel computations of optimisation tasks (global and local) via the asynchronous generalized island model. State of the art optimization algorithms are included. A common interface is provided to other optimization frameworks/algorithms such as NLOPT, SciPy, SNOPT, IPOPT, GSL
Cross platform xamarin and windows plugins for PCLs
Orchestra Platform Application Skeleton
A platform for developing apps using JRuby on Android.
Machine-to-machine instant messaging platform for the internet of things #IoT
Benchmarking platform and competition for source extraction from imaging data
An application development platform
TinyMCE is a platform independent web based Javascript HTML WYSIWYG editor control released as Open Source under LGPL.
A cross platform manga/doujinshi manager with tagging support
MODx Revolution - Content Application Platform
Cross Platform UI Kit powered by Blink/Chromium Content Lib
An Enterprise-grade API Management Platform for Teams. RESTFiddle helps you design, develop, test and release APIs.
A .NET GIS solution that is fast and reliable for the .NET platform.
Home of the StackStorm automation platform.
An API-first, open source software platform for the Internet of Things.
Cross Platform GUI for D programming language
Probably the coolest anime discovery platform around.
The DataTank is open source data platform, which you can use to transform any dataset into an HTTP API.
DIT4C - This is the **public** room, which is searchable by Google et al. If you have private info you want to post put it in the "dit4c" org room.
Next generation desktop application development platform for the JVM
Open-sourced hangouts platform for ethereum.builders (learning-to-code platform). Based on CodeBuddies.org hangouts platform. Built on top of Telescope, another open-sourced project.
An open-source, in-house service platform with a PaaS-like workflow, built on Docker, CoreOS, Etcd and Fleet. This repository houses the documentation and installation scripts.
Hybrid Meteor application platform. Build once, look good everywhere!
Test Suites for Web Platform specifications · IRC: http://irc.w3.org/?channels=testing
cloud-scale consistency platform
Cloud Operations Platform
The Metamaps Knowledge Cartography platform, in private beta at:
Cross platform browser plugin for serial port communication from JavaScript
JS Belgrade website (Ghost platform)
Welcome to this room if you want a chat about the work of the Ripple Foundation. http://ripple.foundation
Open Source Carpooling Platform
a data management platform
CANBus Triple – The car hacking platform