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

94Health
Framework PyPI

Starlette

A lightweight ASGI framework/toolkit for building async web services and apps in Python

12,684
BSD 3
Used by 21
93Health
Tool npm

GraphQL Code Generator

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

11,262
MIT
Used by 21
71Health
Library npm

path-to-regexp

Turn path strings like /user/:id into regular expressions for matching, building, and parsing URLs.

8,614
MIT
Used by 21
85Health
Library npm

react-native-svg

SVG rendering for React Native, React Native Web, and plain React web projects

8,009
MIT
Used by 21
66Health
SDK npm

octokit.js

The all-batteries-included GitHub SDK for browsers, Node.js, and Deno.

7,863
MIT
Used by 21
48Health
Library npm

class-transformer

Decorator-based transformation between plain objects and class instances for TypeScript

7,339
MIT
Used by 21
62Health
Library npm

pako

A fast, zlib-compatible compression library for JavaScript that runs identically in the browser and Node.js.

6,125
MIT
Used by 21
92Health
Library Go

testcontainers-go

Programmatically spin up disposable Docker containers for Go integration and smoke tests, then tear them down automatically.

5,019
MIT
Used by 21
88Health
Library Cargo

rusqlite

An ergonomic, safe Rust wrapper around SQLite with typed rows and prepared statement caching.

4,446
MIT
Used by 21
62Health
Library Cargo

DashMap

A blazing-fast concurrent HashMap for Rust that shards state across locks instead of using one global RwLock.

4,124
MIT
Used by 21
52Health
Library Composer

Faker

Generate realistic fake data for seeding, testing, and anonymizing PHP apps

3,999
MIT
Used by 21
71Health
Library npm

Geist

Vercel's Geist Sans, Mono, and Pixel typefaces, pre-packaged as drop-in Next.js font loaders.

3,670
Other
Used by 21
58Health
Library npm

jiti

A zero-dependency runtime that transpiles TypeScript and ESM on the fly so Node.js can require() or import them directly.

2,977
MIT
Used by 21
82Health
Library npm

sql-formatter

A JavaScript/TypeScript library and CLI that pretty-prints SQL queries across 20+ dialects with configurable style options.

2,899
MIT
Used by 21
42Health
Library npm

passport-local

Passport strategy for authenticating users with a username and password in Node.js and Express applications.

2,754
MIT
Used by 21
38Health
Library npm

jsonrepair

Repair invalid or broken JSON documents — missing quotes, trailing commas, truncation, and more

2,409
Other
Used by 21
42Health
Library npm

Phosphor Icons React

Over 1,500 flexible SVG icon components for React, in six visual weights

1,779
MIT
Used by 21
44Health
Library Cargo

walkdir

A cross-platform Rust library for efficiently walking directory trees recursively

1,552
Other
Used by 21
63Health
Library Go

semver

A fast, spec-compliant Go library for parsing, comparing, and sorting semantic versions with npm-style range constraints.

1,442
MIT
Used by 21
79Health
Library npm

Picomatch

Blazing-fast, dependency-free glob matcher for JavaScript with full Bash-extglob support.

1,305
MIT
Used by 21
87Health
Library PyPI

filelock

A platform-independent file lock for Python that supports the with-statement.

981
MIT
Used by 21
42Health
Library npm

process

Lightweight browser polyfill for Node.js's process global, used by bundlers for isomorphic code

129
MIT
Used by 21
23Health
Library npm

@codemirror/lang-css

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

18
MIT
Used by 21
53Health
Library npm

Formik

Formik: Build React Forms Without the Tears - Docs & Guide

34,309
Apache 2.0
Used by 20

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