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
Library npm

Axios

Promise-based HTTP client for the browser and Node.js with interceptors, automatic transforms, and cancellation

109,212
MIT
Used by 190
96Health
Library npm

OpenTelemetry JavaScript (@opentelemetry/api)

Vendor-neutral tracing, metrics, and context API that libraries and apps instrument once, so any OpenTelemetry-compatible backend can consume it.

3,467
Apache 2.0
Used by 91
79Health
Library npm

MSW (Mock Service Worker)

Seamless REST and GraphQL API mocking for browser and Node.js

18,203
MIT
Used by 57
90Health
Library npm

Prisma Client

Auto-generated, type-safe database client for Node.js and TypeScript.

47,610
Apache 2.0
Used by 46
90Health
Library npm

Pinia

Intuitive, type-safe, and flexible state management store for Vue applications.

14,720
MIT
Used by 31
85Health
Library npm

express-rate-limit

Basic IP rate-limiting middleware for Express to throttle repeated requests and protect public APIs and sensitive endpoints.

3,305
MIT
Used by 30
45Health
Library npm

zod-to-json-schema

Converts Zod validation schemas into standard JSON Schema, ready for OpenAPI, OpenAI, and JSON Schema draft 7 consumers.

1,252
Other
Used by 30
81Health
Library Go

chi

A lightweight, idiomatic Go HTTP router built entirely on net/http, for composing middleware and mounting REST APIs without a framework.

22,827
MIT
Used by 22
90Health
Library npm

Scalar API Reference

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

16,101
MIT
Used by 22
60Health
Library Cargo

jsonwebtoken

Create and decode JSON Web Tokens in Rust in a strongly typed way

2,089
MIT
Used by 16
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
77Health
Library PyPI

drf-spectacular

Sane, flexible OpenAPI 3.0/3.1/3.2 schema generation for Django REST Framework

2,860
BSD 3
Used by 13
42Health
Library npm

GSAP

The industry-standard JavaScript animation library for tweening CSS, SVG, canvas, and UI with rock-solid cross-browser reliability.

28,405
Other
Used by 11
66Health
Library PyPI

django-cors-headers

Configurable CORS headers middleware for Django applications

5,586
MIT
Used by 10
53Health
Library npm

@svgr/core

The Node.js API that converts raw SVG markup into optimized, ready-to-use React components.

11,057
MIT
Used by 9
78Health
Library npm

Orama

A dependency-free full-text, vector, and hybrid search engine that runs entirely in JavaScript.

10,550
Apache 2.0
Used by 9
37Health
Library npm

fastest-levenshtein

The fastest JavaScript/TypeScript implementation of Levenshtein edit distance

774
MIT
Used by 9
88Health
Library npm

Remeda

A TypeScript-first utility library with data-first and data-last function variants, lazy pipe evaluation, and fully typed transformations.

5,427
MIT
Used by 8
55Health
Library npm

superagent

A small, progressive HTTP request library for Node.js and browsers with a single fluent, chainable API on both platforms.

16,637
MIT
Used by 7
94Health
Library npm

gridstack.js

A dependency-free TypeScript library for building draggable, resizable, responsive dashboard grid layouts in the browser.

9,115
MIT
Used by 7
68Health
Library PyPI

ddgs

A Python metasearch library that aggregates text, image, news, and video search results

2,968
MIT
Used by 7
79Health
Library npm

@dicebear/core

Generate deterministic, seed-based SVG avatars in 35+ styles

9,601
MIT
Used by 6
86Health
Library npm

oRPC Client

Type-safe client for consuming oRPC and OpenAPI APIs over HTTP, WebSocket, or message ports.

5,619
MIT
Used by 6
79Health
Library PyPI

referencing

Implementation-agnostic JSON reference resolution for JSON Schema, OpenAPI, and beyond

53
MIT
Used by 6

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