auth0-alternative

Open-source Identity and Access Management Server (Keycloak alternative)

Official SDKs for Authon — authentication platform for modern apps

Open-source, self-hosted authentication server - run many apps (multi-tenant SSO) from one Go + Postgres deployment. OAuth, passkeys, magic links, password, RBAC, audit logs. A self-hosted Auth0 / Keycloak alternative.

Ultra-lightweight, API-first Identity & Access Management (IAM) platform built in Rust — a self-hosted, open-source alternative to Auth0/Okta/Keycloak with OIDC, GraphQL admin API, and a modern React dashboard.

Open-source Auth-as-a-Service on Cloudflare Workers. Password login, OIDC SSO, JWT + refresh tokens, user ban/moderation — deploy in 5 minutes. Free Auth0/Clerk alternative.

🔑 Passwordless WebAuthn/Passkey authentication SDK. Zero cost. Replaces Auth0 & Okta.

Passkeys-first identity & access platform — the open-source Auth0/Okta alternative.