MLT Multimedia Framework
Completely customizable framework for building rich text editors
A web-based IDE for HTML5 game development. Powered by Phaser
Plugin driven WYSIWYG markdown editor framework
The headless editor framework for web artisans
Lexical is an extensible text editor framework
Apache NetBeans
Arbitrary-precision fixed-point decimal numbers in go
Lightweight modular front-end framework for developing web interfaces
MyBatis SQL mapper framework for Java
Moldable Live Programming for Clojure
A vi-like editor based on Plan 9's structural regular expressions
A popular high-performance JSON framework for .NET
Build cross-platform desktop apps with JavaScript, HTML, and CSS
Go package for easily rendering JSON, XML, binary data, and HTML
High performance, open source universal RPC framework
Drag and drop website builder javascript library
Cloud Commander file manager for the web with console and editor
Go tool to modify struct field tags
Comprehensive programming and configuration model for modern apps
An incremental parsing system for programming tools
Document management system developed for the IT team
Helps you find, load, combine, autofill and validate configuration
Edit Banana: A framework for converting statistical figures
A framework to build Pokémon RPG games