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

95Health
SDK npm

Sentry JavaScript (@sentry/browser)

The official Sentry SDK for capturing errors, performance traces, and session replays in browser JavaScript apps.

8,745
MIT
Used by 110
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
90Health
SDK npm

@clickhouse/client

The official TypeScript client for connecting Node.js applications to ClickHouse over HTTP.

332
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
80Health
SDK npm

Octokit REST

The official GitHub REST API client for JavaScript and TypeScript, with a typed method for every endpoint.

664
MIT
Used by 36
97Health
SDK npm

@azure/identity

Microsoft Entra ID credential library that authenticates every Azure SDK client, from managed identity in production to CLI and browser login in development.

2,296
MIT
Used by 28
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
95Health
SDK PyPI

huggingface_hub

The official Python client and hf CLI for the Hugging Face Hub, for downloading, uploading, and managing models, datasets, and Spaces.

3,939
Apache 2.0
Used by 26
96Health
SDK PyPI

sentry-sdk

The official Python SDK for Sentry error tracking, performance monitoring, and tracing.

2,208
MIT
Used by 25
95Health
SDK Go

go-github

A comprehensive Go client library for the GitHub REST API, covering everything from repos and issues to Actions, Apps, and enterprise admin endpoints.

11,309
BSD 3
Used by 23
97Health
SDK Go

azcore

The core HTTP pipeline, credentials, and error types shared by every Azure SDK for Go client library.

1,855
MIT
Used by 22
70Health
SDK npm

octokit.js

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

7,856
MIT
Used by 21
98Health
SDK PyPI

Azure Container Service Management (Python)

Provision and manage Azure Kubernetes Service and container clusters from Python.

5,609
MIT
Used by 17
98Health
SDK PyPI

Azure Identity (Python)

Microsoft Entra ID token authentication for Azure SDK clients in Python

5,609
MIT
Used by 15
79Health
SDK npm

@octokit/core

Extendable client for GitHub's REST and GraphQL APIs

1,286
MIT
Used by 15
95Health
SDK Go

sentry-go

The official Go SDK for capturing errors, panics, and performance traces and sending them to Sentry.

1,105
MIT
Used by 14
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
73Health
SDK npm

@octokit/auth-app

GitHub App authentication strategy for JavaScript and Octokit

180
MIT
Used by 12
92Health
SDK Cargo

Sentry Rust SDK

The official Sentry SDK for capturing errors, panics, and traces in Rust applications

753
MIT
Used by 10
85Health
SDK Composer

Sentry for Laravel

Official Sentry SDK for Laravel with automatic error, log, and performance tracing capture

1,352
MIT
Used by 8
88Health
SDK npm

@sentry/electron

Official Sentry SDK for capturing crashes, errors, and native crash reports in Electron applications

259
MIT
Used by 8

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