Open Source Packages

Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.

5929 packages

Kind

postcss

A CSS transformation engine that parses styles into an AST, letting JS plugins lint, prefix, and rewrite CSS — the foundation beneath Autoprefixer, Tailwind, and 200+ other tools.

sharp

High-performance Node.js image processing powered by libvips, built for fast resizing and format conversion.

Sass

The reference Dart implementation of Sass, the mature CSS preprocessor that compiles SCSS and indented syntax to standards-compliant CSS.

undici

A fast, spec-compliant HTTP/1.1 client for Node.js, built from scratch with zero runtime dependencies

urllib3

A powerful, user-friendly HTTP client for Python with thread-safe connection pooling, TLS verification, and retry handling.

open

Cross-platform Node.js library that opens URLs, files, and executables in the user's default or a specified app.

proxy-agent

Maps HTTP, HTTPS, SOCKS, and PAC proxy protocols to the correct Node.js http.Agent implementation automatically.

@clickhouse/client

The official TypeScript client for connecting Node.js applications to ClickHouse over HTTP.

http-proxy-middleware

The one-liner Node.js proxy middleware for connect, express, next.js, hono, and more.

forge

A native, pure-JavaScript implementation of TLS and PKI cryptography for building crypto-based Node.js and browser apps.

got

Human-friendly and powerful HTTP request library for Node.js, with retries, streams, pagination, and RFC 7234 caching built in.

Echo

A minimalist, high-performance Go web framework with a radix-tree router, built-in middleware chain, and first-class HTTP/2 support.

image-size

Fast, zero-dependency Node.js library that reads image width and height straight from file or buffer headers.

@vitejs/plugin-basic-ssl

A Vite plugin that generates a self-signed certificate so your dev and preview servers can run over HTTPS with zero setup.

superagent

A small, progressive HTTP request library for Node.js and browsers with a single fluent, chainable API on both platforms.

ureq

A simple, safe, blocking HTTP client for Rust with minimal dependencies.

less-loader

Webpack loader that compiles Less stylesheets into CSS

follow-redirects

A drop-in replacement for Node's http and https modules that transparently follows redirects with zero runtime dependencies.

certmagic

Automatic HTTPS for Go programs — the production-grade ACME client library that powers Caddy, obtaining and renewing TLS certificates with zero manual cert management.

gock

Versatile HTTP traffic mocking for Go, intercepting any net/http-based client for deterministic tests.

@neondatabase/serverless

Neon's serverless PostgreSQL driver for JavaScript and TypeScript, built for edge and serverless runtimes using HTTP and WebSockets instead of raw TCP.