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
Tags2
React667 Python639 Javascript591 Rust485 Typescript408 Hacktoberfest308 PHP304 Nodejs280 Parser224 JSON204 Laravel203 Go192 Python360
Sort:Used by Most Apps
Used by Most Apps Health Score Most Stars A-Z
Showing 15 of 5929 packages
Framework Python3 Go Clear all
91Health
Framework PyPI

FastAPI

A modern, high-performance Python web framework for building APIs with automatic validation, serialization, and interactive docs.

102,676
MIT
Used by 78
54Health
Framework Go

Cobra

The commander library that powers Kubernetes, Hugo, and GitHub CLI's command-line interfaces.

44,650
Apache 2.0
Used by 62
89Health
Framework PyPI

Typer

Typer is a Python library for building CLI applications, using type hints to generate arguments, options, validation, help text, and shell completion automatically.

20,033
MIT
Used by 26
77Health
Framework Go

Gin

A high-performance HTTP web framework for Go, built on a zero-allocation radix-tree router with an Express.js-style API.

89,268
MIT
Used by 22
92Health
Framework Go

urfave/cli

A declarative, dependency-free Go package for building fast, friendly command-line tools.

24,260
MIT
Used by 17
82Health
Framework Go

Bubble Tea

A Go framework based on The Elm Architecture for building terminal UIs, from simple prompts to full-window, high-performance TUI applications.

45,125
MIT
Used by 13
94Health
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.

32,734
MIT
Used by 13
81Health
Framework Go

Ginkgo

A mature, BDD-style testing framework for Go that pairs with Gomega to write expressive, parallelizable specs.

9,061
MIT
Used by 10
91Health
Framework npm

Pulumi

Infrastructure as Code in your favorite programming language, powered by a shared multi-language deployment engine.

25,735
Apache 2.0
Used by 6
92Health
Framework Go

Fiber

An Express-inspired Go web framework built on Fasthttp for zero-allocation, extreme-performance HTTP servers.

40,185
MIT
Used by 4
48Health
Framework Go

GoConvey

Behavior-driven testing for Go with nested specs, rich assertions, and a live browser results UI.

8,404
MIT
Used by 3
83Health
Framework PyPI

behave

A Python behavior-driven development framework that runs Gherkin feature files against step definitions written in plain Python.

3,529
Other
Used by 3
63Health
Framework Cargo

Extism

The framework for building with WebAssembly: load, run, and extend apps with wasm plugins.

5,778
BSD 3
Used by 1
85Health
Framework PyPI

taskiq

An async-first distributed task queue for Python with type-safe tasks, pluggable brokers, and first-class FastAPI/AioHTTP integration.

2,342
MIT
Used by 1
91Health
Framework npm

Encore

Backend framework and infra SDK that turns declared resources into real local and cloud infrastructure

12,394
MPL-2.0

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