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

32Health
Library npm

@codemirror/theme-one-dark

The One Dark color theme, ported as a ready-to-use CodeMirror 6 extension

82
MIT
Used by 23
92Health
Tool npm

GraphQL Code Generator

A plugin-based CLI that generates typed code from a GraphQL schema and operations

11,263
MIT
Used by 21
24Health
Library npm

@codemirror/lang-css

CSS language support for the CodeMirror 6 code editor, with highlighting, indentation, and autocompletion

18
MIT
Used by 21
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
20Health
Library npm

@codemirror/lang-yaml

YAML language support for the CodeMirror 6 code editor, with highlighting, indentation, folding, and frontmatter parsing.

19
MIT
Used by 16
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
83Health
SDK npm

@e2b/code-interpreter

JavaScript/TypeScript SDK for running AI-generated code in stateful, isolated E2B cloud sandboxes

2,398
Apache 2.0
Used by 12
63Health
Library npm

react-qr-code

A lightweight React and React Native component that renders scannable QR codes as inline SVG.

892
MIT
Used by 12
25Health
Library npm

@codemirror/language-data

Language metadata and dynamic loading for every language mode in the CodeMirror 6 editor

13
MIT
Used by 12
42Health
Library npm

is-hotkey

Check whether a keyboard event matches a hotkey string like 'mod+s' or 'cmd+alt+space'

375
MIT
Used by 11
89Health
Tool npm

cspell

A fast, self-contained command-line spell checker built for source code and documentation.

1,684
MIT
Used by 10
23Health
Library npm

@codemirror/lang-xml

XML language support package for the CodeMirror 6 code editor

10
MIT
Used by 10
35Health
Library npm

@codemirror/merge

A diff and merge view extension for the CodeMirror 6 code editor

105
MIT
Used by 9
23Health
Library npm

@codemirror/lang-rust

Rust language support for the CodeMirror 6 code editor, powered by a Lezer grammar.

29
MIT
Used by 9
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
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
23Health
Library npm

@codemirror/lang-java

Java language support for the CodeMirror 6 editor, powered by a Lezer grammar.

16
MIT
Used by 7
23Health
Library npm

@codemirror/lang-cpp

C++ language support for the CodeMirror 6 code editor, with syntax highlighting, indentation, and code folding.

11
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
86Health
Tool npm

claude-agent-acp

Use the Claude Agent SDK as a coding agent from any ACP-compatible editor

2,529
Apache 2.0
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