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

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
85Health
Library PyPI

PyJWT

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

5,700
MIT
Used by 44
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
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
95Health
SDK npm

supabase-js

The official isomorphic JavaScript SDK for Supabase — database, auth, realtime, storage, and edge functions in one client.

4,562
MIT
Used by 28
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.

2,295
MIT
Used by 28
73Health
Library npm

express-session

Simple, pluggable session middleware for Express that signs session IDs into a cookie and delegates data storage to any compatible store.

6,358
MIT
Used by 24
92Health
Library npm

openid-client

Certified OAuth 2 and OpenID Connect client for every modern JavaScript runtime.

2,410
MIT
Used by 24
75Health
Library PyPI

bcrypt (Python)

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

1,503
Apache 2.0
Used by 16
98Health
SDK PyPI

Azure Identity (Python)

Microsoft Entra ID token authentication for Azure SDK clients in Python

5,600
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.

3,134
BSD 3
Used by 15
69Health
Library npm

OTPAuth

HOTP and TOTP one-time password library for Node.js, Deno, Bun, and browsers

1,476
MIT
Used by 15
84Health
Library npm

@nestjs/passport

The official NestJS integration module for the Passport authentication middleware

558
MIT
Used by 15
79Health
Library npm

@nestjs/jwt

Official NestJS module for signing, verifying, and decoding JWTs

687
MIT
Used by 14
97Health
SDK npm

firebase-js-sdk

Google's official client SDK for building web and Node.js apps on Firebase's backend services.

5,141
Apache 2.0
Used by 9
92Health
SDK npm

@clerk/backend

The official JavaScript SDK for Clerk's Backend API and JWT session verification.

1,755
MIT
Used by 8
70Health
Library PyPI

argon2-cffi

Secure, high-level password hashing for Python using Argon2

731
MIT
Used by 8
85Health
Library npm

node-oauth2-server

Framework-agnostic, RFC 6749/6750-compliant OAuth 2.0 server module for Node.js with native async/await and PKCE support.

446
MIT
Used by 7
73Health
Library PyPI

OAuthLib

Generic, spec-compliant OAuth1, OAuth2, and OpenID Connect implementation for Python

2,980
BSD 3
Used by 6
63Health
Library npm

set-cookie-parser

Parse raw Set-Cookie header values into structured JavaScript cookie objects

197
MIT
Used by 6
61Health
Library PyPI

PyOTP

Python library for generating and verifying TOTP/HOTP one-time passwords for 2FA

3,335
MIT
Used by 5
45Health
Library npm

speakeasy

A Node.js library for generating and verifying RFC 4226 (HOTP) and RFC 6238 (TOTP) one-time passcodes for two-factor authentication.

2,755
MIT
Used by 5
78Health
Library npm

SAML Jackson (Polis)

Open-source SAML 2.0 and OIDC library that turns enterprise SSO logins into a plain OAuth 2.0 flow for your Node.js app.

2,263
Apache 2.0
Used by 4

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