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

97Health
Tool npm

webpack

A static module bundler that builds a dependency graph of your project's modules and packages them into optimized browser bundles

65,948
MIT
Used by 90
90Health
Framework PyPI

FastAPI

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

102,333
MIT
Used by 76
92Health
Library npm

undici

A fast, spec-compliant HTTP/1.1 client for Node.js, built from scratch with zero runtime dependencies

7,695
MIT
Used by 70
46Health
Library npm

@rollup/plugin-alias

Rollup plugin for defining and resolving import aliases, swapping brittle relative paths for clean, refactor-safe module names.

3,756
MIT
Used by 49
93Health
Library PyPI

urllib3

A powerful, user-friendly HTTP client for Python with thread-safe connection pooling, TLS verification, and retry handling.

4,058
MIT
Used by 48
68Health
Library npm

proxy-agent

Maps HTTP, HTTPS, SOCKS, and PAC proxy protocols to the correct Node.js http.Agent implementation automatically.

1,161
MIT
Used by 47
48Health
Library npm

unified

Parse, inspect, transform, and serialize content through syntax-tree plugins.

5,030
MIT
Used by 44
91Health
Library npm

BullMQ

Fast, reliable Redis-based message queue and background job processing for Node.js and TypeScript.

9,396
MIT
Used by 41
92Health
SDK npm

@clickhouse/client

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

331
Apache 2.0
Used by 38
92Health
Framework Composer

PHPUnit

The de facto standard, programmer-oriented unit testing framework for PHP.

20,055
BSD 3
Used by 34
65Health
Tool npm

openapi-typescript

Generate type-safe TypeScript types directly from your OpenAPI 3.0 and 3.1 schemas.

8,366
MIT
Used by 33
93Health
Library Composer

Guzzle

An extensible PHP HTTP client for sending requests and integrating with web services

23,455
MIT
Used by 31
46Health
Library npm

openapi-types

Type-safe TypeScript definitions for OpenAPI 2.0, 3.0, and 3.1 specification documents, covering paths, schemas, and components.

921
MIT
Used by 25
90Health
Library npm

Scalar API Reference

Interactive, embeddable API reference documentation generated from your OpenAPI or Swagger specs.

16,101
MIT
Used by 22
98Health
Framework Composer

Laravel

The expressive, elegant PHP framework for building modern web applications

34,910
MIT
Used by 21
84Health
Library npm

http-proxy-middleware

The one-liner Node.js proxy middleware for connect, express, next.js, hono, and more.

11,126
MIT
Used by 20
55Health
Library Composer

Collision

Beautiful command-line error reporting for PHP apps and test suites

4,658
MIT
Used by 18
48Health
Library npm

forge

A native, pure-JavaScript implementation of TLS and PKI cryptography for building crypto-based Node.js and browser apps.

5,331
Other
Used by 17
95Health
Tool Go

grpc-gateway

A protoc plugin that generates a reverse-proxy server, turning RESTful HTTP/JSON requests into gRPC calls from the same service definitions.

20,003
BSD 3
Used by 16
95Health
Library npm

Mongoose

Schema-based MongoDB object modeling for Node.js, with built-in validation, middleware hooks, and typed models.

27,468
MIT
Used by 15
84Health
Library npm

got

Human-friendly and powerful HTTP request library for Node.js, with retries, streams, pagination, and RFC 7234 caching built in.

14,940
MIT
Used by 15
85Health
Tool npm

openapi-ts

OpenAPI-to-TypeScript code generator producing production-grade SDKs, Zod schemas, and TanStack Query hooks.

5,406
MIT
Used by 14
91Health
Library Go

kin-openapi

A Go library for parsing, validating, converting, and working with OpenAPI 2.0, 3.0, 3.1, and 3.2 documents.

3,293
MIT
Used by 14
58Health
SDK Composer

league/flysystem-aws-s3-v3

The official AWS S3 v3 SDK adapter for PHP Flysystem's unified filesystem API.

1,657
MIT
Used by 14

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