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Open-source repos for auth and identity

19 repos tagged Auth and identity, sorted by GitHub stars. Add filters from the other category types to narrow the list.

19repos tagged Auth and identity

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  1. supabase/supabase

    Open-source Firebase alternative built on Postgres with auth, instant APIs, realtime, storage and edge functions.

    Backend as a service, Web, Engineering, SaaS, Solo founders, Indie hackers

    114k starsApache-2.0Updated 3 Nov 2026

  2. appwrite/appwrite

    Self-hostable backend platform with auth, databases, storage, functions, messaging and site hosting for web and mobile apps.

    Backend as a service, Hosting and deploy, Web, Docker, Engineering, SaaS, Solo founders, Indie hackers

    57.9k starsBSD-3-ClauseUpdated 3 Nov 2026

  3. keycloak/keycloak

    Identity and access management server offering SSO, OIDC, SAML, user federation and social login for apps.

    Web, Engineering, IT and security, SaaS, Self hosters

    37.7k starsApache-2.0Updated 3 Nov 2026

  4. better-auth/better-auth

    Framework-agnostic authentication library for TypeScript with plugins for 2FA, organizations, passkeys and SSO.

    Web, Engineering, SaaS, Solo founders, Indie hackers

    30.6k starsMITUpdated 1 Nov 2026

  5. authelia/authelia

    Auth server that adds SSO and two-factor login in front of apps behind a reverse proxy.

    Reverse proxy, Docker, IT and security, Self hosters

    29.5k starsApache-2.0Updated 3 Nov 2026

  6. goauthentik/authentik

    Self-hosted identity provider for SSO, OAuth2/OIDC, SAML, LDAP and proxy auth, popular with homelabs and small teams.

    Docker, Engineering, IT and security, SaaS, Self hosters

    26.2k starsOtherUpdated 3 Nov 2026

  7. zitadel/zitadel

    Identity management platform with multi-tenancy, passkeys, OIDC, SAML and an audit trail for B2B and SaaS apps.

    Web, Engineering, IT and security, SaaS, B2B services

    15.5k starsAGPL-3.0Updated 3 Nov 2026

  8. supertokens/supertokens-core

    Open-source auth service with email/password, passwordless, social login, sessions and MFA for your app.

    Web, Engineering, IT and security, SaaS, Solo founders, Indie hackers

    15.3k starsOtherUpdated 2 Nov 2026

  9. oauth2-proxy/oauth2-proxy

    Reverse proxy that requires login through an OAuth2 or OIDC provider before letting users reach an app.

    Reverse proxy, Docker, Kubernetes, IT and security, Self hosters

    15.3k starsMITUpdated 3 Nov 2026

  10. logto-io/logto

    Auth and identity platform for SaaS and AI apps with OIDC, multi-tenancy, SSO, RBAC and prebuilt sign-in flows.

    Web, Engineering, IT and security, SaaS, Solo founders, Indie hackers

    14.8k starsMPL-2.0Updated 2 Nov 2026

  11. ory/kratos

    Headless identity and user management server handling registration, login, MFA and account recovery via APIs.

    Web, Engineering, IT and security, SaaS

    13.9k starsApache-2.0Updated 29 Jul 2026

  12. pocket-id/pocket-id

    Lightweight OIDC login server for your self-hosted apps, where users authenticate with passkeys instead of passwords.

    Docker, IT and security, Self hosters

    9.9k starsBSD-2-ClauseUpdated 3 Nov 2026

  13. nhost/nhost

    Backend platform combining Postgres, GraphQL via Hasura, auth, storage and serverless functions, self-hostable or managed.

    Backend as a service, Web, Engineering, SaaS, Solo founders, Indie hackers

    9.4k starsMITUpdated 3 Nov 2026

  14. smallstep/certificates

    Private certificate authority and ACME server for issuing TLS and SSH certificates inside your infrastructure.

    Secrets management, Docker, Kubernetes, Operations, IT and security

    9k starsApache-2.0Updated 27 Oct 2026

  15. lldap/lldap

    Lightweight LDAP server with a web UI for managing users and groups, built for simple self-hosted setups.

    Docker, IT and security, Self hosters

    6.6k starsGPL-3.0Updated 26 Sept 2026

  16. pomerium/pomerium

    Identity-aware access proxy that gives zero-trust access to internal apps without a VPN.

    Reverse proxy, Docker, Kubernetes, IT and security

    5.1k starsApache-2.0Updated 3 Nov 2026

  17. medplum/medplum

    FHIR-native developer platform and backend for building healthcare apps, portals and EHR workflows.

    Health records, Internal tools, Web, AWS, Engineering, Healthcare, SaaS

    2.8k starsApache-2.0Updated 3 Nov 2026

  18. Shopify/shopify_app

    Rails plugin that sets up what a Shopify app needs: OAuth sign-in, webhook handling and an embedded admin page.

    Storefronts, Shopify, Engineering, E-commerce, SaaS

    1.9k starsMITUpdated 3 Nov 2026

  19. Shopify/shopify-app-js

    Shopify's JavaScript libraries for app auth, Admin API calls, sessions and webhooks.

    Storefronts, Shopify, Engineering, E-commerce, SaaS

    544 starsMITUpdated 30 Oct 2026