head to head · open source
Zitadel vs Logto
Zitadel has 15,499 GitHub stars, 1,413 forks, 1,171 open issues and last shipped yesterday. Logto has 14,837 stars, 1,212 forks, 183 open issues and last shipped yesterday. Zitadel leads on adoption by 4% (15,499 vs 14,837 stars). Zitadel is written in Go under AGPL-3.0; Logto is written in TypeScript under MPL-2.0. Zitadel has attracted 9% as many forks as stars, Logto 8%. Zitadel was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 7 topic tags (authentication, authorization, identity, login), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Zitadel | Logto | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 15K |
| License | AGPL-3.0 | MPL-2.0 |
| Written in | Go | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 1.4K | ⑂ 1.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Zitadel if
- You weight community size — 15K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick Logto if
- You want the Logto feature set and don't need the biggest community
- You prefer the MPL-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and Logto fits your workflow better
About Zitadel
The Identity Infrastructure for Developers ZITADEL is an open source identity and access management platform built for teams that need more than basic auth. Whether you're securing a SaaS product, building a B2B platform, or self hosting a production IAM stack — ZITADEL gives you everything out of the box: SSO, MFA, Passkeys, OIDC, SAML, SCIM, and a battle tested multi tenancy model. No vendor lock in. No compromise on control. Just a robust, API first identity platform you can own. 🏡 Website 💬 Chat 📋 Docs 🧑💻 Blog 📞 Contact Why ZITADEL We built ZITADEL to handle the hardest IAM challenges at scale —…
read the full Zitadel overview →
About Logto
Logto Logto is the modern, open source auth infrastructure for SaaS and AI apps. It takes the pain out of OIDC and OAuth 2.1 and makes it easy to build secure, production ready auth with multi tenancy, enterprise SSO, and RBAC. website • cloud • docs • api • blog • auth wiki • newsletter Why Logto? Built for teams scaling SaaS, AI, and agent based platforms without the usual auth headaches. With Logto, you get: Multi tenancy, enterprise SSO, and RBAC : ready to use, no workarounds. Pre built sign in flows , customizable UIs, and SDKs for 30+ frameworks. Full support for OIDC, OAuth 2.1, and SAML without the…
read the full Logto overview →
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Frequently asked questions
Is Zitadel or Logto more popular?
Zitadel has 15,499 GitHub stars and Logto has 14,837. Zitadel has the larger community by that measure.
Are Zitadel and Logto free?
Both are open source. Zitadel is licensed under AGPL-3.0 and Logto under MPL-2.0. Neither carries a licence fee.
What is the difference between Zitadel and Logto?
Zitadel is written in Go and Logto in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Zitadel or Logto?
Choose Zitadel if you want the larger community (15,499 stars) or its AGPL-3.0 licence terms. Choose Logto if its feature set, stack or MPL-2.0 licence fits better. Both are self-hostable.