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
92Health
SDK npm

@clickhouse/client

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

331
Apache 2.0
Used by 38
62Health
Library npm

D3.js

The JavaScript library for building custom, data-driven documents with SVG, Canvas, and HTML

113,729
Other
Used by 31
90Health
Library npm

ECharts

A powerful, interactive JavaScript charting and data-visualization library for the browser.

67,316
Apache 2.0
Used by 30
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
67Health
Library npm

react-chartjs-2

React components for Chart.js — typed, hooks-friendly charts for React apps

6,941
MIT
Used by 19
53Health
Library npm

d3-scale

Encodes abstract data as visual scales for position, color, size, and other chart dimensions.

1,616
Other
Used by 18
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
91Health
Framework Go

Echo

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

32,705
MIT
Used by 13
57Health
Library npm

decimal.js

An arbitrary-precision Decimal type for JavaScript with full trigonometric support

7,252
MIT
Used by 12
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
68Health
Library npm

@visx/shape

Low-level React SVG shape primitives for building custom D3-powered data visualizations.

21,048
MIT
Used by 10
50Health
Library npm

d3-shape

Graphical shape generators for arcs, lines, areas, pies, and stacks that render as SVG paths or Canvas draw calls.

2,526
Other
Used by 8
55Health
SDK npm

msgraph-sdk-javascript

Official Microsoft Graph JavaScript SDK for calling the Graph API from Node.js and the browser.

833
MIT
Used by 8
69Health
Tool npm

@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.

516
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
86Health
Library Go

excelize

A pure Go library for reading, writing, and streaming Microsoft Excel spreadsheets, from cell values to charts and pivot tables.

20,906
BSD 3
Used by 6

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