Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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diff
A battle-tested JavaScript library for computing and applying text diffs at the character, word, line, sentence, CSS, or JSON level.
undici
A fast, spec-compliant HTTP/1.1 client for Node.js, built from scratch with zero runtime dependencies
Electron
Build cross-platform desktop apps with JavaScript, HTML, and CSS on Chromium and Node.js
@codemirror/language
Language support infrastructure for the CodeMirror 6 editor: parsing, indentation, code folding, bracket matching, and syntax highlighting.
Fuse.js
Lightweight, zero-dependency fuzzy-search library for JavaScript and TypeScript, in the browser or on the server.
KaTeX
Fast, self-contained JavaScript library for print-quality LaTeX math rendering on the web.
JSZip
Create, read, and edit ZIP files directly in JavaScript, in the browser or Node.js.
PapaParse
The fastest in-browser CSV parser for JavaScript, with streaming, Web Workers, and zero dependencies
Faker
Generate massive amounts of realistic fake data for testing, seeding, and mocking in JavaScript and TypeScript.
xterm.js
A fast, self-contained TypeScript library for embedding fully-featured terminals in the browser.
TanStack Router
A fully type-safe React router with built-in data loading, caching, and URL search-param validation.
SWC
Rust-based JavaScript/TypeScript compiler, a drop-in super-fast alternative to Babel
@codemirror/commands
A collection of editing, selection, deletion, indentation, and undo-history commands with default keymaps for the CodeMirror 6 code editor.
React CodeMirror
A fully-typed React component and hook for embedding the CodeMirror 6 code editor with themes and language extensions.
@codemirror/autocomplete
Autocompletion engine for the CodeMirror 6 code editor, with fuzzy matching, snippets, and bracket closing.
@codemirror/lang-json
JSON language support for the CodeMirror 6 editor: parsing, folding, indentation, and a built-in parse-error linter.
RxJS
The standard library for composing asynchronous and event-based programs using observable sequences
qrcode
A zero-dependency-on-canvas QR code and 2D barcode generator for Node.js and the browser.
markdown-it
A fast, pluggable CommonMark-compliant Markdown parser and renderer for JavaScript, safe by default.
cookie-parser
Express middleware that parses HTTP Cookie headers into req.cookies, with support for signed and JSON-encoded cookie values.
Embla Carousel React
A lightweight, dependency-free React hook for building fluid, touch-precise carousels and sliders.
bcrypt.js
A zero-dependency, pure JavaScript implementation of bcrypt for hashing and verifying passwords in Node.js and the browser.
core-js
Modular standard library and polyfills for JavaScript, from ECMAScript features to proposals and web standards.
qs
A battle-tested querystring parser and serializer for Node.js with nested object support and built-in security limits.
