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

96Health
Framework PyPI

pytest

The Python testing framework that makes writing small tests easy and scales to complex functional test suites.

14,543
MIT
Used by 100
95Health
Framework PyPI

aiohttp

Asynchronous HTTP client and server framework for Python's asyncio, covering both API calls and building web/WebSocket services.

16,561
Apache 2.0
Used by 40
95Health
Framework PyPI

Transformers

State-of-the-art pretrained models for text, vision, audio, and multimodal inference and training.

166,736
Apache 2.0
Used by 38
92Health
Framework npm

Docusaurus

React-based static site generator for building fast, maintainable documentation websites.

66,349
MIT
Used by 36
92Health
Framework npm

NestJS

A progressive Node.js framework for building efficient, scalable, and maintainable server-side applications in TypeScript.

76,743
MIT
Used by 27
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
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
60Health
Framework Composer

nwidart/laravel-modules

Split large Laravel applications into self-contained, independently generated modules — each with its own routes, controllers, views, and migrations.

6,214
MIT
Used by 4
71Health
Framework npm

@refinedev/core

Headless React meta-framework for building CRUD-heavy admin panels, dashboards, and internal tools fast.

35,731
MIT
Used by 3
96Health
Framework npm

aws-cdk

The core AWS CDK v2 construct library for defining cloud infrastructure as code and deploying it via CloudFormation.

12,911
Apache 2.0
Used by 3
68Health
Framework npm

nest-commander

nest-commander lets NestJS developers build command-line apps using the same decorators, DI, and modules as their web services.

485
MIT
Used by 3
94Health
Framework PyPI

Scrapy

A fast, high-level Python framework for crawling websites and extracting structured data at scale.

64,504
BSD 3
Used by 2
95Health
Framework Composer

Yii 2

Fast, secure, professional PHP framework with ActiveRecord ORM and code generation.

14,290
BSD 3
Used by 1
83Health
Framework Cargo

actix

A Rust actor framework for building concurrent, message-driven systems on top of Tokio.

9,248
Other
Used by 1
98Health
Framework Composer

CakePHP

The rapid-development MVC framework for PHP, with a powerful ORM and convention-over-configuration.

8,791
MIT
Used by 1
60Health
Framework npm

TypeGraphQL

Build type-safe GraphQL APIs in TypeScript by defining schema and resolvers with classes and decorators instead of hand-written SDL.

8,089
MIT
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
90Health
Framework npm

PatternFly

The official HTML, CSS, and Handlebars source for PatternFly, Red Hat's open-source design system for building consistent enterprise UIs.

818
MIT
Used by 1
52Health
Framework Composer

Utopia CLI

A dependency-free PHP micro-framework for building command-line tools with task routing, DI, and lifecycle hooks.

42
MIT
Used by 1
64Health
Framework npm

@tryghost/api-framework

A composable request pipeline that runs Ghost's API controllers through validation, serialization, permissions, and query stages.

37
MIT
Used by 1

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