Bugsnag vs Keycloak
The ultimate side-by-side head-to-head analysis for 2026.
Short answer
- Price: not directly comparable — Bugsnag is free tier available, Keycloak is free.
- How to start: Bugsnag is free tier available, Keycloak is free.
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 We do not publish a quality score, because we do not have one we can stand behind.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.
Bugsnag
Keycloak
Category
Developer Tools
Developer Tools
Base Price
Free tier
Free
Public API
Yes
Yes
Mobile app
No
No
Open source / self-hostable
No
Yes
SSO (SAML)
Yes
Yes
Choose Bugsnag if:
Teams that ship mobile or web releases and need to know if quality is slipping.
Choose Keycloak if:
Organisations that need enterprise identity without a per-user bill.
Bugsnag: pros & cons
- Stability scores tie errors to releases
- Good mobile SDK coverage
- Clear grouping of duplicate errors
- Event pricing climbs with traffic
- Smaller ecosystem than Sentry
- Fewer performance features
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
Our verdict on Bugsnag
The release-stability framing is genuinely useful. Sentry covers more ground for most teams.
Our verdict on Keycloak
The serious open-source answer to Auth0. Budget for the operations, because the licence saving is not free.