Comparison · Firebase Auth

Best Firebase Auth alternatives

Firebase Auth is the authentication target all three tools on this page are listed against, and one of the three is marked open source. Clerk is more than authentication, with complete user management, listed with a free tier of 10k MAU, Stytch is passwordless authentication for consumer and B2B apps, listed with a free tier of 10,000 monthly active users — Stytch was acquired by Twilio in November 2025 and the product is unchanged — and Hanko is passkey-first authentication, open source and self-hostable, listed as self-hosted free with a cloud free tier. Compare on whether you want hosted user management or a self-hosted passkey-first system.

3 tools · 1 open-source · Prices and open-source status are as listed in the DevAlt directory.