The LaTeX2e kernel
The expl3 (LaTeX3) Development Repository
A tool that automatically formats Python code to conform to the PEP 8
The static code analysis tool you need for your HTML
Formatting library as an alternative to C stdio and C++ iostreams
The fastest JSON schema Validator
JSON that's part of C++
Safely and predictably create, change, and improve infrastructure
Situational Awareness Server compatible with TAK clients
the MiKTeX source code
arXiv LaTeX Cleaner: Easily clean the LaTeX code of your paper
WebDriver for Firefox
A static analyzer for Java, C, C++, and Objective-C
Alcinoe Component Library For Delphi
Documentation tool for ObjectPascal (Free Pascal, Lazarus, Delphi)
webrpc is a schema-driven approach to writing backend services
Skin changer for League of Legends (LOL)
A static analysis tool for shell scripts
A small library for converting tokenized PHP source code into XML
Web Framework built on top of Qt, using the approach of Catalyst
HTML, CSS and JS framework for developing responsive websites and apps
Generates utilities to aid in serializing to/from JSON.
Tom Preston-Werner's obvious, minimal language
Write email in Markdown and render them before sending
Beautifier for javascript