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

93Health
Framework Cargo

Tokio

The async runtime powering most of Rust's networked, concurrent, and I/O-bound applications.

33,150
MIT
Used by 95
51Health
Library npm

jsonwebtoken

The de facto Node.js library for signing, verifying, and decoding JSON Web Tokens.

18,196
MIT
Used by 93
89Health
Library npm

jose

Zero-dependency JWT, JWS, JWE, and JWK toolkit for Node.js, browsers, and edge runtimes.

7,792
MIT
Used by 66
92Health
Library Cargo

futures

The foundational Future, Stream, and Sink traits and combinators for zero-cost async Rust

5,921
Apache 2.0
Used by 65
67Health
Library Go

jwt

A zero-dependency Go implementation of JSON Web Tokens (JWT) with pluggable HMAC, RSA, RSA-PSS, ECDSA, and Ed25519 signing methods.

9,225
MIT
Used by 62
82Health
Library npm

RxJS

The standard library for composing asynchronous and event-based programs using observable sequences

31,698
Apache 2.0
Used by 53
51Health
Library npm

cookie-parser

Express middleware that parses HTTP Cookie headers into req.cookies, with support for signed and JSON-encoded cookie values.

2,030
MIT
Used by 52
56Health
Library npm

bcrypt.js

A zero-dependency, pure JavaScript implementation of bcrypt for hashing and verifying passwords in Node.js and the browser.

3,797
BSD 3
Used by 51
60Health
Library npm

p-limit

A tiny, battle-tested utility for running async functions with a strict concurrency limit.

2,925
MIT
Used by 45
85Health
Library PyPI

PyJWT

A Python implementation of RFC 7519 for encoding, decoding, and verifying JSON Web Tokens.

5,700
MIT
Used by 44
76Health
Library Cargo

async-trait

Type erasure for async fn in Rust traits, enabling async methods behind dyn dispatch.

2,196
Other
Used by 43
89Health
Framework npm

Better Auth

The most comprehensive, framework-agnostic authentication and authorization framework for TypeScript.

29,933
MIT
Used by 37
98Health
Library PyPI

google-auth

The foundational Python library for authenticating to Google Cloud and Google APIs with OAuth2, service accounts, and Application Default Credentials.

5,383
Apache 2.0
Used by 35
48Health
Library npm

bcrypt

Battle-tested password hashing for Node.js using the adaptive bcrypt algorithm.

7,803
MIT
Used by 34
43Health
Library npm

passport

Simple, unobtrusive authentication middleware for Node.js with 480+ pluggable strategies.

23,530
MIT
Used by 31
64Health
Library npm

cookie

Basic HTTP cookie parser and serializer for HTTP servers, with zero dependencies and full RFC 6265 support.

1,534
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
90Health
Library PyPI

websockets

Build correct, fast WebSocket servers and clients in Python with asyncio, threading, or Sans-I/O APIs.

5,717
BSD 3
Used by 29
73Health
Library Go

go-oidc

A Go client library for OpenID Connect, built on top of golang.org/x/oauth2.

2,479
Apache 2.0
Used by 28
37Health
Library npm

async-mutex

Mutex and semaphore primitives for synchronizing async workflows in JavaScript and TypeScript.

1,434
MIT
Used by 27
73Health
Library npm

NextAuth.js

Open-source authentication for Next.js with OAuth, OIDC, email, and passkey sign-in.

28,365
Other
Used by 26
40Health
Library Cargo

once_cell

Single-assignment cells and lazy statics for Rust, without macros or unsafe code

2,091
Apache 2.0
Used by 26
62Health
Library npm

jwt-decode

A lightweight TypeScript library for decoding JSON Web Token payloads and headers in the browser and Node.js.

3,396
MIT
Used by 25
56Health
Library Cargo

tokio-tungstenite

Asynchronous, Tokio-native WebSocket streams built on tungstenite

2,507
MIT
Used by 25

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