Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
All Packages
Category
Sort:Used by Most Apps
highlight.js
Zero-dependency JavaScript syntax highlighter with automatic language detection for over 190 languages.
python-dotenv
Load environment variables from a .env file into Python's os.environ, the standard way to keep 12-factor config out of your code
CodeMirror State
Immutable document, selection, and transaction data structures for the CodeMirror code editor
reqwest
An ergonomic, batteries-included HTTP client for Rust, with async and blocking APIs.
client_golang
The official Prometheus instrumentation library for Go applications.
@monaco-editor/react
Drop the Monaco code editor into any React app without touching webpack, rollup, or bundler config files.
webpack-cli
The official command-line interface for webpack, adding build, watch, serve, and config-validation commands to any project.
Oxlint
Rust-based JavaScript/TypeScript linter that runs 50-100x faster than ESLint, with zero configuration required.
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
Floating UI
React hooks and components for building accessible, perfectly positioned tooltips, popovers, and dropdowns.
tempfile
A secure, cross-platform Rust library for temporary files and directories that clean up automatically on drop.
MDX
The compiler that lets you write JSX directly inside Markdown documents
classnames
A tiny utility for conditionally joining CSS class names together.
vite-tsconfig-paths
Resolves TypeScript's tsconfig.json path aliases inside Vite, so aliased imports work without redeclaring them in the Vite config.
Pino
A super fast, low-overhead JSON logger for Node.js applications.
Ajv
The fastest JSON Schema validator for Node.js and the browser, compiling schemas straight into executable validation code.
@codemirror/language
Language support infrastructure for the CodeMirror 6 editor: parsing, indentation, code folding, bracket matching, and syntax highlighting.
Monaco Editor
The browser-based code editor that powers VS Code, embeddable in any web application.
Emotion
Performant, flexible CSS-in-JS styling for React with the css prop, theming, and SSR support
JSZip
Create, read, and edit ZIP files directly in JavaScript, in the browser or Node.js.
jose
Zero-dependency JWT, JWS, JWE, and JWK toolkit for Node.js, browsers, and edge runtimes.
base64
Correct, fast, and configurable base64 encoding and decoding for Rust, with pluggable alphabets and padding.
