Keycloak vs PlanetScale
The ultimate side-by-side head-to-head analysis for 2026.
Short answer
- Price: not directly comparable — Keycloak is free, PlanetScale is free tier available.
- How to start: Keycloak is free, PlanetScale is free tier available.
These lines are generated from the pricing we track, not from a paid placement. We do not publish a quality score, because we do not have one we can stand behind. They cannot tell you which tool fits your workflow — the sections below are there for that. How we score tools.
Keycloak
PlanetScale
Category
Developer Tools
Developer Tools
Base Price
Free
Free tier
Public API
Yes
Yes
Mobile app
No
No
Open source / self-hostable
Yes
No
SSO (SAML)
Yes
Yes
Choose Keycloak if:
Organisations that need enterprise identity without a per-user bill.
Choose PlanetScale if:
Teams shipping frequent schema changes who want to avoid migration downtime.
Keycloak: pros & cons
- Full identity server at no licence cost
- Standards support including SAML and OIDC
- Complete control over user data
- Operating it is a real responsibility
- Administration console is dense
- Upgrades need care
PlanetScale: pros & cons
- Schema changes without downtime
- Branching workflow that mirrors Git
- Managed, with no server maintenance
- No foreign key constraints in the traditional sense
- Costs rise quickly beyond small workloads
- Ties you to their platform and workflow
Our verdict on Keycloak
The serious open-source answer to Auth0. Budget for the operations, because the licence saving is not free.
Our verdict on PlanetScale
The branching model genuinely solves a painful problem. Check the pricing tiers against your read volume before committing.