Directory

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

All Packages

92Health
Library npm

undici

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

7,695
MIT
Used by 70
93Health
Library PyPI

urllib3

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

4,058
MIT
Used by 48
68Health
Library npm

proxy-agent

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

1,161
MIT
Used by 47
90Health
Library npm

Prisma Client

Auto-generated, type-safe database client for Node.js and TypeScript.

47,610
Apache 2.0
Used by 46
57Health
Library npm

reflect-metadata

A polyfill for the Metadata Reflection API that powers decorator metadata in TypeScript and JavaScript.

3,360
Apache 2.0
Used by 46
84Health
Library npm

http-proxy-middleware

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

11,126
MIT
Used by 20
48Health
Library npm

forge

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

5,331
Other
Used by 17
84Health
Library npm

got

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

14,940
MIT
Used by 15
42Health
Library npm

GSAP

The industry-standard JavaScript animation library for tweening CSS, SVG, canvas, and UI with rock-solid cross-browser reliability.

28,405
Other
Used by 11
72Health
Library npm

officeParser

Parse Office documents into a rich AST and generate Markdown, HTML, PDF, or RAG chunks

539
MIT
Used by 8
55Health
Library npm

superagent

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

16,637
MIT
Used by 7
94Health
Library npm

gridstack.js

A dependency-free TypeScript library for building draggable, resizable, responsive dashboard grid layouts in the browser.

9,115
MIT
Used by 7
72Health
Library Cargo

ureq

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

2,190
Apache 2.0
Used by 7
50Health
Library npm

follow-redirects

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

580
MIT
Used by 7
74Health
Library Go

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.

5,598
Apache 2.0
Used by 6
43Health
Library Go

gock

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

2,217
MIT
Used by 5
80Health
Library PyPI

python-unidiff

A typed Python library that parses unified diff data into inspectable PatchSet, PatchedFile, and Hunk objects.

286
MIT
Used by 5
83Health
Library npm

Badge Maker

The standalone SVG badge-rendering library and CLI extracted from Shields.io, with no server dependency.

27,187
MIT
Used by 3
89Health
Library npm

conventional-changelog

Generates changelogs and release notes straight from your git commit history using conventional-commits presets.

8,508
MIT
Used by 3
42Health
Library npm

request-promise

A Bluebird-powered Promise wrapper around the request HTTP client for Node.js — deprecated since 2020 along with request itself.

4,714
Other
Used by 3
74Health
Library npm

http-cookie-agent

Adds tough-cookie-based cookie jar support to Node.js global fetch, undici, axios, node-fetch, and other HTTP clients.

53
MIT
Used by 3
24Health
Library npm

epub2

A TypeScript fork of the classic epub library for parsing EPUB e-book metadata, chapters, and images in Node.js, with both callback and Promise-based APIs.

26
MIT
Used by 3
67Health
Library Composer

League URI

A PHP library for parsing, building, and manipulating URIs, URNs, and URI templates

1,128
MIT
Used by 2
51Health
Library Cargo

axum-server

A hyper-based HTTP server designed to be used with the Rust axum web framework.

262
MIT
Used by 2

Join founders buildingwith open source

Opinionated takes, migration guides, cost-saving tips, and insights from the open source ecosystem.

Subscribe on Substack
Join 750+ subscribers