Algorithms and Data Structures implemented in JavaScript for beginners, following best practices.
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DOMPurify - a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMPurify works with a secure default, but offers a lot of configurability and hooks. Demo:
GPU Accelerated JavaScript
An extensive math library for JavaScript and Node.js
Beautiful and accessible math in all browsers
A scriptable scratchpad for developers. In slow yet steady progress.
A robust HTML entity encoder/decoder written in JavaScript.
A self-hosted, Markdown file based task management board
A curated, battle-tested AI-coding toolkit: Claude Code plugins, subagent orchestration, quality gates, and ready-to-copy prompts, extracted from real production use.
A regular expression to match all Emoji-only symbols as per the Unicode Standard.
A Unicode-aware string reverser written in JavaScript.
The RAW rational numbers library written in JavaScript
Fully hackable text editor developed for exact sciences with built-in KaTeX and AsciiMath support. Extensible via plugins and themes. Exportable as HTML, PDF and GFM.
Grunt plugin to interact with AWS S3 using the AWS SDK
A source code transpiler that enables the use of ES2015 Unicode regular expressions in ES5.
A command-line utility for quick math.
The RAW JavaScript Quaternion library
A robust & optimized ES3-compatible polyfill for the `String.prototype.startsWith` method in ECMAScript 6.
zikojs is a javascript library with a focus on making coding effortless .
Extend GitHub pages with math, graphs etc.
WebAssembly wrapper to simplify fast math coding
A robust & optimized ES3-compatible polyfill for the `String.prototype.contains` method in ECMAScript 6.
A robust & optimized ES3-compatible polyfill for the `Array.from` method in ECMAScript 6.
A robust & optimized `String.fromCodePoint` polyfill, based on the ECMAScript 6 specification.