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Open Source Projects tagged "Oauth2"

A curated collection of the best open source projects tagged "Oauth2". Each listing includes a website screenshot along with a detailed review of its features.

Supabase

Postgres-powered backend platform for production apps

  • Stars

    Stars growing over the last 30 days114,547

  • Last commit

    5 hours ago

  • License

    Apache-2.0
Provides a full backend stack built on Postgres: authentication, auto-generated APIs, edge functions, realtime subscriptions, file storage, and vector search.

Open Source Alternative to:

Firebase

Better Auth

Framework-agnostic authentication for TypeScript applications

  • Stars

    30,598

  • Last commit

    7 hours ago

  • License

    MIT
A comprehensive authentication framework offering email/password, social sign-on, two-factor auth, and multi-tenant support with full TypeScript integration.

Open Source Alternative to:

Auth0

Authentik

Take control of your identity with a secure, flexible solution

  • Stars

    26,238

  • Last commit

    6 hours ago

  • License

    MIT
authentik is an open-source identity provider that offers self-hosted authentication, authorization, and user management for businesses of all sizes.

Open Source Alternative to:

Auth0

Zitadel

Secure, customizable identity infrastructure for developers

  • Stars

    15,515

  • Last commit

    1 day ago

  • License

    AGPL-3.0
ZITADEL provides a comprehensive identity management solution with easy APIs, customizable workflows, and serverless deployment options.

Open Source Alternative to:

Supabase

Logto

Secure, seamless authentication for modern applications

  • Stars

    14,844

  • Last commit

    5 hours ago

  • License

    MPL-2.0
An open-source identity solution offering customizable login experiences, multi-tenant support, and comprehensive user management.

Open Source Alternative to:

Auth0

Nango

Build product integrations with 500+ APIs in hours

  • Stars

    Stars growing over the last 30 days13,123

  • Last commit

    5 hours ago

  • License

    Elastic-2.0
Complete integrations platform with 500+ pre-built APIs, code-first approach, unified data models, and enterprise-grade security. Free tier available.

Open Source Alternative to:

Pipedream

ACI.dev

AI
Build reliable AI agents with unified tool integration

  • Stars

    4,931

  • Last commit

    4 days ago

  • License

    Apache-2.0
Platform for connecting AI agents to 500+ tools with built-in multi-tenant auth management and granular permissions using either function calling or a unified MCP server

Open Source Alternative to:

Pipedream

Authgear

Managed identity and access management for any app

  • Stars

    2,143

  • Last commit

    1 day ago

  • License

    Apache-2.0
Authgear is a managed IAM platform handling authentication, SSO, and user management for B2C and B2B apps, with biometrics, MFA, and zero-trust support.

Open Source Alternative to:

Auth0
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