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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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
RxJS
The standard library for composing asynchronous and event-based programs using observable sequences
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.
remark
A plugin-powered markdown processor that parses, transforms, and serializes markdown on top of unified.
Ruff
An extremely fast Python linter and code formatter, written in Rust, built as a drop-in replacement for Flake8, Black, isort, and dozens of plugins.
Prisma Client
Auto-generated, type-safe database client for Node.js and TypeScript.
reflect-metadata
A polyfill for the Metadata Reflection API that powers decorator metadata in TypeScript and JavaScript.
react-hotkeys-hook
A lightweight React hook for wiring up keyboard shortcuts in components declaratively.
unified
Parse, inspect, transform, and serialize content through syntax-tree plugins.
file-type
Detect the file type of a buffer, stream, or file by reading its magic number.
execa
A modern process-execution library for Node.js with template-string syntax and zero shell-injection risk.
buffer
The Node.js Buffer API, reimplemented for the browser on top of Uint8Array.
npm-run-all
A cross-platform CLI that runs multiple npm-scripts in parallel or in sequence, replacing fragile shell operators like && with Windows-safe orchestration.
mime-types
The ultimate JavaScript content-type utility for resolving MIME types from file extensions and paths.
