Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
All Packages
Category1
Sort:Used by Most Apps
PyJWT
A Python implementation of RFC 7519 for encoding, decoding, and verifying JSON Web Tokens.
google-auth
The foundational Python library for authenticating to Google Cloud and Google APIs with OAuth2, service accounts, and Application Default Credentials.
@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.
bcrypt (Python)
A Python library for secure password hashing using the bcrypt algorithm with an adjustable work factor
Azure Identity (Python)
Microsoft Entra ID token authentication for Azure SDK clients in Python
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.
@octokit/auth-app
GitHub App authentication strategy for JavaScript and Octokit
argon2-cffi
Secure, high-level password hashing for Python using Argon2
node-oauth2-server
Framework-agnostic, RFC 6749/6750-compliant OAuth 2.0 server module for Node.js with native async/await and PKCE support.
OAuthLib
Generic, spec-compliant OAuth1, OAuth2, and OpenID Connect implementation for Python
PyOTP
Python library for generating and verifying TOTP/HOTP one-time passwords for 2FA
Flask-WTF
Simple integration of Flask and WTForms with built-in CSRF, file upload, and reCAPTCHA support
zxcvbn-ts
A TypeScript rewrite of Dropbox's zxcvbn password strength estimator, with pluggable dictionaries and async matcher support.
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.
Google2FA
A framework-agnostic PHP implementation of HOTP and TOTP one-time passwords, compatible with Google Authenticator and similar apps.
hvac
Python client library for HashiCorp Vault's secrets, authentication, and system-backend REST APIs.
django-allauth
Integrated Django app for authentication, registration, and social login
fastapi-users
Ready-to-use, fully customizable user registration, authentication, and management for FastAPI applications.
Flask-Limiter
Rate limiting for Flask applications with pluggable storage backends and per-route limits
Social Auth Core
The core authentication backend engine behind Python Social Auth, supporting OAuth, OpenID, and SAML.
lcobucci/jwt
A simple, RFC 7519-compliant PHP library for creating, signing, and validating JSON Web Tokens
django-oauth-toolkit
Turns any Django project into a spec-compliant OAuth 2.0 and OpenID Connect authorization server.
supabase-py
The official Python client for Supabase, wrapping Postgres, Auth, Storage, Edge Functions, and Realtime in one typed SDK.
Social Auth App Django
Django integration for python-social-auth, adding social login and registration to Django projects