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

91Health
Library PyPI

Pygments

Generic syntax highlighter for Python supporting over 500 languages and formats

2,211
Other
Used by 18
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
92Health
Library npm

@grpc/grpc-js

Pure JavaScript implementation of gRPC clients and servers for Node.js.

4,843
Apache 2.0
Used by 17
93Health
Tool npm

sentry-cli

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

1,043
Other
Used by 17
67Health
Library Cargo

serial_test

Attribute macros that serialize or parallelize Rust tests via named locks.

296
MIT
Used by 17
86Health
Library npm

TypeORM

A TypeScript/JavaScript ORM supporting both Active Record and Data Mapper, across more databases than any other JS ORM

36,658
MIT
Used by 16
91Health
Library PyPI

Celery

Distributed task queue for running asynchronous jobs, scheduled work, and complex workflows across Python applications at scale.

28,914
BSD 3
Used by 16
75Health
Library Go

lipgloss

Lipgloss brings a CSS-like, declarative styling API to Go terminal apps, covering colors, borders, layout, and compositing for building polished TUIs.

11,876
MIT
Used by 16
92Health
Library npm

TanStack Form

Headless, type-safe form state management for React, Vue, Solid, Angular, and more

6,699
MIT
Used by 16
84Health
Library PyPI

pytest-mock

A pytest plugin that provides a `mocker` fixture wrapping Python's `unittest.mock`, with automatic teardown between tests.

2,041
MIT
Used by 16
93Health
Library npm

@nestjs/swagger

The official NestJS module that generates OpenAPI (Swagger) documentation from your controllers and DTOs

1,893
MIT
Used by 16
75Health
Library PyPI

bcrypt (Python)

A Python library for secure password hashing using the bcrypt algorithm with an adjustable work factor

1,501
Apache 2.0
Used by 16
91Health
Framework PyPI

django-rest-framework

The most widely-used toolkit for building Web APIs on top of Django, with serializers, viewsets, and a built-in browsable API.

30,191
BSD 3
Used by 15
78Health
Library Go

migrate

Database schema migrations for Go, usable as a CLI tool or an importable library with pluggable source and database drivers.

18,944
MIT
Used by 15
98Health
SDK PyPI

Azure Identity (Python)

Microsoft Entra ID token authentication for Azure SDK clients in Python

5,609
MIT
Used by 15
46Health
Library PyPI

itsdangerous

A small Python toolkit for cryptographically signing data so you can trust it hasn't been tampered with when it comes back from an untrusted client.

3,135
BSD 3
Used by 15
40Health
Library PyPI

aiosqlite

Async/await-friendly wrapper around Python's built-in sqlite3 module for asyncio applications.

1,576
MIT
Used by 15
79Health
SDK npm

@octokit/core

Extendable client for GitHub's REST and GraphQL APIs

1,286
MIT
Used by 15
77Health
Library PyPI

croniter

Parses cron schedule strings and iterates the matching datetime values, with DST, second/year fields, and last-weekday support.

562
MIT
Used by 15
88Health
Framework PyPI

FastMCP

The fast, Pythonic framework for building Model Context Protocol servers, clients, and apps

27,913
Apache 2.0
Used by 14
91Health
Framework PyPI

Pydantic AI

A type-safe Python agent framework built by the Pydantic team

20,217
MIT
Used by 14
92Health
Library PyPI

networkx

Python library for creating, manipulating, and analyzing complex networks and graphs.

17,292
BSD 3
Used by 14
51Health
Library npm

ExcelJS

Read, manipulate, and write XLSX spreadsheet data, styles, and formulas in JavaScript

15,486
MIT
Used by 14
89Health
Library npm

Lingui

A readable, 2kb internationalization runtime for JavaScript with ICU MessageFormat and rich-text support.

5,897
MIT
Used by 14

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