# keycloak vs SpacetimeDB

> Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

| | keycloak | SpacetimeDB |
|---|---|---|
| Score | 86/100 ✓ | 75/100 |
| Rank in category | #1 of 40 in Authentication | #7 of 38 in Databases |
| GitHub stars | 37 589 ✓ | 25 407 |
| Stars, last 30 days | +608 ✓ | +85 |
| Stable releases, 12 months | 14 ✓ | 7 |
| Latest release | 26.8.1 · 13 Oct 2026 | v2.13.0 · 19 Oct 2026 ✓ |
| Setup | Moderate | Moderate ✓ |
| Official Docker image | Yes | Yes |
| License | Apache-2.0 | Other |
| Main language | Java | Rust |

## Which one should you pick?

keycloak scores 86/100 against 75/100 for SpacetimeDB, so it is the safer default.

keycloak ships more often: 14 stable releases in the past year, against 7 for SpacetimeDB.

keycloak is growing faster right now (+608 stars in 30 days).

## Details

- [keycloak](https://selfhost.directory/project/keycloak) (markdown: https://selfhost.directory/project/keycloak.md)
- [SpacetimeDB](https://selfhost.directory/project/spacetimedb) (markdown: https://selfhost.directory/project/spacetimedb.md)

---
Source: https://selfhost.directory/compare/keycloak-vs-spacetimedb