Authentication
The battle-tested default for customer identity; heavier and pricier than newer options, but nobody gets fired for picking it.
Own your user table instead of renting it — a framework-agnostic TypeScript auth library that's fast becoming the default for new projects.
Drop-in sign-up/sign-in components plus a real user management backend, so you stop hand-rolling auth screens for the tenth time.
The free, self-hosted IAM workhorse everyone reaches for when procurement won't approve a SaaS auth bill.
Headless, API-first identity infrastructure that scales to a billion users if you're willing to run it yourself.
API-first passwordless and passkey auth for teams that want to design their own flows instead of using prebuilt UI.
Open-source and self-hostable if you want Auth0-grade features without an Auth0-grade bill or vendor lock-in.
Bolt on enterprise SSO, SCIM, and directory sync only when a big customer demands it, without rearchitecting your existing auth.