Cobra : Cobra is a library providing a simple interface to create powerful modern CLI interfaces similar to git & go tools.
Cobra is also an application that ...
docopt : Command-line interface description language. docopt helps you define interface for your command-line app, and automatically generate parser for it.
RAWGraphs : RAW is an open web tool to create custom vector-based visualizations on top of the amazing d3.js library.
Primarily conceived as a tool for designers ...
React : A JavaScript library for building user interfaces
Frappe Charts : GitHub-inspired simple and modern charts for the web with zero dependencies.
A collection of command-line tools for researchers in machine learning, data mining, and related fields. All of the functionality is also provided in a clean C++ class library. Demo apps are included to show how to use the class library.