12 Best Auth0 Alternatives & Competitors in October 2026

The main alternatives to Auth0 split by use case. Clerk offers drop-in UI components and a fast setup for React and Next.js apps, with less depth in enterprise federation. WorkOS focuses on enterprise SSO and directory sync for B2B SaaS and prices per connection, which can cost less than Auth0 for products with many users and few enterprise customers. Stytch is API-first with strong passwordless and B2B primitives for teams that want their own UI. Supabase Auth is the natural pick if you already run on Supabase Postgres. Firebase Authentication is cheap and simple for consumer and mobile apps. AWS Cognito has low per-user costs and native AWS integration but a harder developer experience. Keycloak is open source and self-hosted with no per-user fees, but you operate it yourself. Auth0 stands out for breadth: Organizations, SCIM, Actions, FGA and AI agent tooling in one platform.

Auth0 is one of the most popular developer & it tools, but it is not always the right fit for every team. The best Auth0 alternatives offer different pricing, features, or startup deals that might match your needs better. Whether you are looking for a cheaper Auth0 alternative, an open-source Auth0 alternative, or simply a tool like Auth0 with a better startup deal, the 12 alternatives above are all worth considering.

Each Auth0 alternative listed here offers an exclusive deal through SaaSOffers, from free credits to discount codes and extended trials, so you can save thousands on your stack while finding the right fit. Most startups end up using a combination of developer & it tools, and there are no restrictions on claiming multiple deals through SaaSOffers.

Top Auth0 alternatives compared

The best alternatives to Auth0 in October 2026 are Auvik, Softr, Google Cloud, Scaleway and AWS Activate. Each one is a verified Auth0 competitor with a startup deal you can claim through SaaSOffers, making them genuinely cheaper alternatives to Auth0 for early-stage teams.

How we picked these Auth0 alternatives

We selected 12 tools from the Developer & IT category that have verified startup deals available through SaaSOffers. They are ranked as the best Auth0 alternatives by deal value, popularity, and how well they replace Auth0 for early-stage teams. Every alternative on this page is a real working tool with active deals, not affiliate fluff.

Free Auth0 alternatives for startups

Many of the Auth0 alternatives listed offer free plans, free credits, or extended trials specifically for startups. If you are looking for a free Auth0 alternative, check the deal value on each card above. Alternatives marked with "Free" or "credits" can be used at zero cost. Combined with the SaaSOffers free account, these alternatives can save your startup thousands per year.

Can I claim multiple developer & it deals?

Yes. There are no restrictions on claiming multiple startup deals through SaaSOffers. Many startups try 2-3 Auth0 alternatives before settling on the right one, for example, one for the main use case and another for a specialized workflow. Claim every alternative that fits your needs.

Auth0 vs alternatives: which is best?

The "best" Auth0 alternative depends on your specific needs. Auth0 excels at developer & it, but the alternatives above each have unique strengths. Some are better for small teams, others for enterprise scale, and some offer better startup pricing. Compare deal values, features, and team size requirements before deciding which Auth0 alternative to claim.