updated Jul 2026deployed & timed by usprices checked · Aug 2026Install verified on Ubuntu 26.04 · Aug 2026 · how we test
A cloud-native, open-source identity and access management platform — OIDC, SAML, and passwordless auth with multi-tenancy built in, a self-hostable alternative to Auth0 and Okta.
Choose Zitadel when you want a modern, API-first identity platform — passwordless and multi-tenant from the ground up, often described as "a modern Keycloak". It's a strong fit for building auth into your own products. Note it's AGPL-licensed; if that's a problem for your organisation, authentik (MIT core) or Keycloak (Apache-2.0) avoid it.
What you need
Any VPS with at least 1024 MB of RAM
A domain you control — most self-hosted setups need HTTPS in front of them
About the better part of a day
Install
Run these commands on your server:
# Zitadel — official docker-compose quickstartcurl -LO https://raw.githubusercontent.com/zitadel/zitadel/main/deploy/compose/docker-compose.ymlcurl -LO https://raw.githubusercontent.com/zitadel/zitadel/main/deploy/compose/.env.example && cp .env.example .envdocker compose up -d --wait
Zitadel is modern and capable, with two things worth checking before you adopt it:
non-negotiableIt's AGPL-3.0. The licence carries network-copyleft obligations that some companies won't accept — confirm it's compatible with your use before you build on it.
non-negotiableIt needs its database. Zitadel is event-sourced on Postgres — give it a real database and back it up; it is the source of truth for every identity.
non-negotiableThe ecosystem is younger. It's newer than Keycloak, so there are fewer third-party guides and integrations — strong docs, but you'll blaze a few trails.