JSXGraph is a cross-browser library for interactive geometry, function plotting, charting, and data visualization in a web browser.

A JavaScript framework for interactive (mathematical) content.

A jupyter kernel for Wolfram Mathematica

Try JShell on Web

Interactive mathematics in the browser

Complex special functions and common mathematical operations in JavaScript

A parser for Wolfram Mathematica's Graphics3D functions (written in JS)

Provides examples, traces and documentation for the Trace Compass Scripting feature

http://matheclipse.org - website for Symja project: https://github.com/axkr/symja_android_library

jQuery.tsv plugin for working with text/tab-separated-values text.