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

Kind1
Library4824 SDK549 Tool342 Framework214
Category
Utilities Ids Helpers1293 Serialization Data Formats487 UI Component Libraries383 Cli Terminal323 Authentication Authorization289 Cryptography Hashing259 Web Frameworks API Servers246 Build Tools Bundlers227 Image Media Processing213 Cloud Sdks200 Database Drivers Clients200 Async Concurrency Runtimes194
Tags4
React667 Python638 Javascript591 Rust485 Typescript408 Hacktoberfest308 PHP304 Nodejs280 Parser224 JSON205 Laravel203 Go192 Algorithm12 Javascript7 Python362
Sort:Used by Most Apps
Used by Most Apps Health Score Most Stars A-Z
Showing 17 of 5929 packages
Tool Javascript Algorithm Python36 Rust Clear all
90Health
Tool npm

SWC

Rust-based JavaScript/TypeScript compiler, a drop-in super-fast alternative to Babel

34,191
Apache 2.0
Used by 55
90Health
Tool PyPI

Ruff

An extremely fast Python linter and code formatter, written in Rust, built as a drop-in replacement for Flake8, Black, isort, and dozens of plugins.

49,630
MIT
Used by 46
94Health
Tool npm

sentry-cli

Official command-line tool for uploading source maps, debug symbols, and managing releases and deploys in Sentry.

1,041
Other
Used by 17
91Health
Tool npm

Rspack CLI

The official command-line interface for running Rspack builds, dev servers, and previews.

12,899
MIT
Used by 12
94Health
Tool Cargo

wasm-bindgen

Rust-JavaScript interop toolchain that generates the glue code needed to compile Rust to WebAssembly and call it from JS

9,148
Apache 2.0
Used by 11
84Health
Tool npm

quicktype

Generate strongly-typed models and serializers from JSON, Schema, TypeScript, or GraphQL

13,868
Apache 2.0
Used by 5
88Health
Tool PyPI

Granian

A fast Rust HTTP server for Python that serves ASGI, WSGI, and RSGI applications

5,639
BSD 3
Used by 5
80Health
Tool npm

fallow

Rust-native static analysis for TypeScript and JavaScript that finds dead code, duplication, cycles, and architecture drift with no compiler or AI in the loop.

4,506
MIT
Used by 3
94Health
Tool Cargo

Deno

Secure-by-default JavaScript and TypeScript runtime built in Rust on V8

108,424
MIT
Used by 2
84Health
Tool PyPI

ty

An extremely fast Python type checker and language server written in Rust.

19,688
MIT
Used by 2
89Health
Tool Cargo

flutter_rust_bridge

A feature-rich yet seamless Flutter/Dart to Rust binding generator for calling native Rust from Dart.

5,407
MIT
Used by 2
90Health
Tool npm

moon

A Rust-based build system and monorepo orchestrator that manages toolchains, tasks, caching, and CI pipelines across the JavaScript, TypeScript, and polyglot ecosystem.

4,100
MIT
Used by 2
41Health
Tool Cargo

jemalloc_pprof

Convert jemalloc heap profiles to pprof format for memory leak and OOM debugging

277
Apache 2.0
Used by 2
89Health
Tool PyPI

ast-grep

Fast CLI for structural code search, linting, and rewriting by AST pattern.

15,894
MIT
Used by 1
88Health
Tool Cargo

skim

A fast, interactive fuzzy finder for the command line, written in Rust — a smarter alternative to grep.

6,955
MIT
Used by 1
80Health
Tool Cargo

oxipng

Multithreaded lossless PNG and APNG optimizer, usable as a CLI or a Rust library.

4,221
MIT
Used by 1
62Health
Tool Cargo

afl.rs

Fuzz-test Rust code with AFLplusplus using the afl crate's fuzz macros and cargo-afl tooling.

1,845
Apache 2.0
Used by 1

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