Alternatives to Auth0 — authentication without the pricing cliff (2026)
Auth0 is a good product with a pricing model founders keep getting caught by. Everything is fine on the free tier, then a growth spurt pushes you across a monthly-active-user threshold and authentication becomes one of your largest infrastructure bills — for a feature that is table stakes and generates no revenue on its own. The second complaint is scope: most teams use a fraction of what Auth0 does, but carry the configuration surface of an enterprise identity platform to get it. The right replacement depends on which of the two problems you have. If auth was always going to sit next to your database, bundling them removes a vendor. If you are selling a SaaS product, auth and billing are the same signup flow and splitting them across tools is the actual mistake. And authentication is not authorization — if what you really need is permissions, that is a different tool entirely.
Why founders leave Auth0
Monthly-active-user pricing that steps up sharply just as you grow, plus an enterprise-scale configuration surface for what most startups use as a login form.
4 Auth0 alternatives worth shortlisting
Each pick below replaces a specific part of Auth0 — the note says which, so you can move one piece at a time instead of committing to a full migration.
- 1
Supabase▲ 74
The open source Firebase alternative
Auth that lives in the same place as your data, so row-level security policies reference the logged-in user directly. For most apps this removes a vendor rather than replacing one.
- 2
Outseta▲ 26
All-in-one auth, billing, and CRM for SaaS and membership sites
The right answer for SaaS: auth, billing, CRM and email in one signup flow. Splitting authentication from subscription state across two vendors is the thing that later causes the bugs.
- 3
Privy▲ 39
Wallet and auth infrastructure to onboard users onchain
For consumer and onchain products where login means a wallet — embedded wallets and key management alongside conventional email login, which Auth0 does not do.
- 4
Cerbos▲ 20
Decoupled authorization and access control
Worth being precise about: if your actual problem is who can do what rather than who is this, you need authorization. Cerbos decouples policy from application code so permissions stop living in if-statements.
Compare them side by side
FAQ
What is the best alternative to Auth0?
Supabase is our top pick. Auth that lives in the same place as your data, so row-level security policies reference the logged-in user directly. For most apps this removes a vendor rather than replacing one. Outseta and Privy are the other options worth shortlisting — all 4 are live, community-upvoted startups listed on Launchory, not a static roundup.
Why do founders switch away from Auth0?
Monthly-active-user pricing that steps up sharply just as you grow, plus an enterprise-scale configuration surface for what most startups use as a login form.
Is Auth0 listed on Launchory?
No. Auth0 is a reference point, not a listing — this page exists to compare the Auth0 substitutes that founders have actually submitted to Launchory. Every product below has its own profile you can open, upvote, and compare.
Browse every Security & Privacy startup, see all alternatives guides, or list your own Auth0 alternative.