How to Switch from FusionAuth to Keycloak
The migration, step by step
- 1Prepare
Audit how you actually use it
List the FusionAuth features your team touches weekly. Most teams use 20% of features for 80% of the work — those are the only ones the free alternative must cover.
- 2Prepare
Export your data first
Before anything else, export everything from FusionAuth. Keep the export in its original format plus any open standard offered (CSV, JSON, SVG, Markdown). Do not cancel yet.
- 3Pilot
Set up the free alternative
Install or open Keycloak and recreate one small, real project from scratch — not a toy file. This surfaces gaps while switching is still cheap.
- 4Pilot
Run a two-week pilot in parallel
Do live work in Keycloak while keeping FusionAuth read-only. Note every friction point; most disappear after the first week as muscle memory adjusts.
- 5Migrate
Migrate your assets
Move your exported files into Keycloak. Where direct import is unsupported, use the open-standard export (CSV/SVG/Markdown) or a one-time conversion — then keep the originals archived.
- 6Cut the cost
Cut the subscription
Cancel FusionAuth at the end of the billing cycle (avoid losing access mid-cycle). Check the cancellation date against your renewal to dodge the next price increase.
Your destination: Keycloak
Keycloak
An open source identity and access management solution — actively maintained by an open-source community and free for both personal and commercial use Positioned as a popular alternative to FusionAuth, offering comparable core features at zero cost.
| Capability | Keycloak |
|---|---|
| Free / open source | An open source identity and access management solution — actively maintained by an open-source community and free for both personal and commercial use Positioned as a popular alternative to FusionAuth, offering comparable core features at zero cost. |
| Real-time collaboration | Not mentioned in the verified description — check the project docs. |
| AI-assisted features | Not mentioned in the verified description — check the project docs. |
| Works offline / desktop app | Not mentioned in the verified description — check the project docs. |
| Self-hosted option | Not mentioned in the verified description — check the project docs. |
| Plugin / extension ecosystem | Not mentioned in the verified description — check the project docs. |
| No watermarks or limits | Not mentioned in the verified description — check the project docs. |
| Team permissions & admin | Not mentioned in the verified description — check the project docs. |
Feature rows are derived from the verified project description — treat ✓ as confirmed and check the project docs before you commit.
Not the right fit? 2 more free alternatives
A free open source identity and access management platform — actively maintained by an open-source community and free for both personal and commercial use Positioned as a popular alternative to FusionAuth, offering comparable core features at zero cost.
A free and open source OAuth 2.0 server implementation — with generous free-tier limits covering most personal and small-team projects Positioned as a popular alternative to FusionAuth, offering comparable core features at zero cost.