Logto

Judgement

What it is

Building block

What it does

An authentication and authorisation service built on OIDC and OAuth 2.1 with sign-in UI, social login, MFA, SSO, RBAC and organisations.

Adopt it when

You want an Auth0-like service with ready sign-in screens that you can self-host or use as cloud.

Watch out

Some enterprise features are cloud-only, and self-hosting means running and upgrading Postgres.

Ready for

Production-ready

Runs as

Self-hosted server and cloud service

Built with

TypeScript, Node.js and PostgreSQL

How established

Established: started 5 years ago, latest release v1.45.0.

What the license allows

You can use it inside a product you sell; changes you make to its own files must be shared.

Judged on 2026-11-03 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: Logto → TypeScript → Go → runs on a microchip

How compilers were built, back to punched paper tape

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