Outline clients, developed by Jigsaw
Desktop/Android/HTML5/iOS Java game development framework
The first open source design and prototyping tool
Firefox for iOS
One framework for creating powerful cross-platform games
An open source MongoDB-like database with zero configuration
Efficient glTF 3D import / export package for Unity
Everything you need to build and deploy scalable realtime 3D apps
The source code to VVVVVV
Hybrid of a textbox and <select> box for tagging and contact lists
A flexible logging framework for Mac and iOS
Testing layer for Microsoft's HttpClient library
Socket.IO-client for iOS/OS X
A Swifty API for attributed strings
Telegram client, in Go. (MTProto API)
Self-custodial Bitcoin wallet using Lightning to send/receive payments
Fast, non-deadlocking parallel object cache for iOS, tvOS and OS X
The automatic type-safe REST library for .NET Core, Xamarin and .NET.
Mobile database: a replacement for Core Data & SQLite
A cross-platform, portable, linkable Git implementation library
A collection of more than 500 native Swift extensions
Instant messaging platform
Lua API wrapper with advanced features and top notch performance
libdspl-2.0 is opensource cross-platform digital signal processing alg
Free 32/64/16-bit multi-platform Pascal and Object Pascal compiler