keycloakvsMailu
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| keycloak | Mailu | |
|---|---|---|
| Score | 86/100 | 69/100 |
| Rank in category | #1 of 40 in Authentication | #8 of 106 in Email |
| GitHub stars | 37 584 | 7 592 |
| Stars, last 30 days | +603 | +70 |
| Stable releases, 12 months | 14 | 22 |
| Latest release | 26.8.1 · 13 Oct 2026 | 2024.06.67 · 23 Oct 2026 |
| Setup | Moderate | Moderate |
| Official Docker image | Yes | No |
| License | Apache-2.0 | Other |
| Main language | Java | Python |
Which one should you pick?
keycloak scores 86/100 against 69/100 for Mailu, so it is the safer default.
Mailu ships more often: 22 stable releases in the past year, against 14 for keycloak.
keycloak is growing faster right now (+603 stars in 30 days).
keycloak details →Mailu details →
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