Paul's fish, bash, git, etc config files. good stuff
Functional Programming Library for C++
Requests for PHP is a humble HTTP request library
A friendly substitute for .NET mocking libraries
Build forms in React
common java utility library
Bar Code (1D or 2D) generator in pure Ada
Assorted useful classes
Google's common JavaScript library
Promise-based library for animating elements with dynamic heights
Useful stuff for APL programmers
A simple java lib with Swing widgets and other stuff.
Trip.js is a plugin that can help you customize a tutorial trip easily
A Collection of Useful Java/Swing Code
JavaScript library for modern browsers with a jQuery compatible API
Commentary.vim: comment stuff out
Java library for easy accessing Tor network.
Java library for automated Soap & Rest web Services Creation
ROguelike Toolkit in JavaScript
Ethernet stack implementation (currently based on the ENC28J60)
A ridiculously simple Java save/load library
Utility classes from maps to search engine to random samplers