Auth0 logo in SVG and monochrome, with its brand colours as hex, RGB and OKLCH.
Logo assets
Auth0 brand colours
Extracted from the artwork and ranked by how much of the mark each covers — not from a brand book, so treat them as observed rather than official.
What Auth0 is
Auth0 is hosted identity: universal login, social and enterprise connections, SAML and OIDC federation, MFA, and Actions for injecting custom logic into the login pipeline. Acquired by Okta in 2021 and now positioned alongside Okta's workforce identity products, with Auth0 remaining the customer-identity side. It is mature, well documented, and comprehensively certified, which is why it keeps winning compliance-driven evaluations. It is also the product most frequently cited in migration-away stories, almost always over per-monthly-active-user pricing that scales uncomfortably for consumer applications. The alternatives split three ways: Clerk and Stytch on developer experience, Supabase Auth and Firebase Auth as a bundled part of a backend, and Keycloak, Ory, Zitadel and Authentik for teams who would rather self-host the whole thing. Auth-included-versus-bolt-on is a field in toolweight's backend comparison for exactly this reason.