Keycloak
Match 90/100 · Free · save ~$420/yr
- FOSS IdP
- Self-host
Auth-as-a-service (MAU / B2B seat priced) — expensive at scale vs self-host IdPs.
Auth0 (Okta Customer Identity) typical price: $35/mo Estimated Price checked: 2026-07-29 · Page updated 2026-08-19
Short list of the highest-ranked free and cheaper options (match score + price). Details and full ranking follow.
Ranked by closest match score, then lower price. Free options surface when they fit. How we rank: methodology · trust.
Keycloak — free open-source identity provider (self-host).
Authentik — free open-source identity provider.
Supabase Auth — free-tier managed auth for apps.
Cloudflare Access — often a stronger value alternative.
| Tool | Price | Match | Est. savings vs Auth0 (Okta Customer Identity) | Link |
|---|---|---|---|---|
| Auth0 (Okta Customer Identity) (paid baseline) | $35/mo | — | — | |
| Free | 90/100 | $420/yr | Open | |
| Free | 86/100 | $420/yr | Open | |
| Free | 82/100 | $420/yr | Open | |
| Free | 70/100 | $420/yr | Open |
We may earn a commission on some links. Approximate seed pricing — verify on vendor site CheaperThan is independent comparison content, not affiliated with Auth0 (Okta Customer Identity) unless stated. Author: CheaperThan Editorial · Sources: public vendor pricing + catalog match notes · Methodology.
Trust & transparency · Guides · Methodology · Best free Security
Keycloak is the best free alternative to Auth0 (Okta Customer Identity) on this page (match score 90/100). Keycloak — free open-source identity provider (self-host). Always trial free tiers before migrating critical work.
If you want cheaper than Auth0 (Okta Customer Identity), start with Keycloak (free). CheaperThan ranks by closest match plus lower price.
Auth0 (Okta Customer Identity) is listed at about $35 per month (or $420/year). Price checked 2026-07-29. Vendor pricing changes — confirm on the official site.
Switching from Auth0 (Okta Customer Identity) to Keycloak can save about $420 per year (~$35/month). Other rows show savings for each alternative.
Match scores estimate feature/use-case overlap, not perfection. Keycloak scores 90/100 for Auth0 (Okta Customer Identity) workflows. For pro production, test your real files before canceling Auth0 (Okta Customer Identity).
Yes — in Security, free options such as Keycloak are commonly used instead of Auth0 (Okta Customer Identity). See also related tools in this category below and /best-free/security/.
We sort alternatives by match score first, then free-first when free options fit, then lower price. Paid placements (Starter/Featured/Spotlight) are labeled advertising and do not rewrite organic order. CheaperThan labels Estimated vs Verified prices, ranks by match score + price (free-first when they fit), and never invents user star reviews. See /trust/ and /methodology/.
Auth0 (Okta Customer Identity) shows Estimated pricing (checked 2026-07-29). Approximate seed pricing — verify on vendor site Always verify on the official site before you buy or cancel. Transparency: /trust/ and /methodology/.
1) Open the top pick Keycloak and run a real-file trial. 2) Export or migrate critical projects from Auth0 (Okta Customer Identity). 3) Compare feature gaps against your must-haves (match score is a guide, not a guarantee). 4) Cancel Auth0 (Okta Customer Identity) only after you confirm the workflow. Full process notes: /trust/ and /guides/.
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