Logto
Open-source Auth0 alternative built on OIDC and OAuth 2.1.
About
Logto is an open-source auth infrastructure positioned as the developer-friendly alternative to Auth0, Cognito and Firebase Auth. It ships a complete identity solution: sign-in experiences, social connectors, passwordless login, MFA, organization management for multi-tenancy, RBAC and enterprise SSO via SAML and OIDC.
The architecture splits a management console from OIDC/OAuth 2.1-compliant endpoints, with SDKs for over 30 frameworks, machine-to-machine auth, and webhooks for user-event sync. The core repo has roughly 13,000 GitHub stars. Logto's own comparison pages claim a token-based free plan up to 50K monthly active users, though pricing details should be checked against current vendor pages.
What it can do
- Passwordless, social and password login flows
- Enterprise SSO with SAML, OIDC and Okta connectors
- Organizations for B2B multi-tenancy plus RBAC
- M2M auth, webhooks and SDKs for 30+ frameworks
Setup
docker run logtoio/logto for self-hosting, or create a tenant on Logto Cloud.
Prerequisites
Docker for self-hosting; a PostgreSQL database if running outside Docker Compose.
Use cases
Works with
Trust score — 8/10
Scored 8/10 (verified tier, metrics-v1). Evidence: Verified via vendor site/docs/GitHub and reputable coverage, wave 92; Trending score 76/100 from researcher assessment.
Sources
Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.