# keycloak vs Zulip

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

| | keycloak | Zulip |
|---|---|---|
| Score | 86/100 ✓ | 82/100 |
| Rank in category | #1 of 40 in Authentication | #1 of 110 in Chat |
| GitHub stars | 37 577 ✓ | 26 133 |
| Stars, last 30 days | +610 ✓ | +190 |
| Stable releases, 12 months | 14 ✓ | 6 |
| Latest release | 26.8.1 · 13 Oct 2026 ✓ | 12.3 · 21 Sept 2026 |
| Setup | Moderate ✓ | Moderate |
| Official Docker image | Yes | Yes |
| License | Apache-2.0 | Apache-2.0 |
| Main language | Java | Python |

## Which one should you pick?

keycloak scores 86/100 against 82/100 for Zulip, so it is the safer default.

keycloak ships more often: 14 stable releases in the past year, against 6 for Zulip.

keycloak is growing faster right now (+610 stars in 30 days).

## Details

- [keycloak](https://selfhost.directory/project/keycloak) (markdown: https://selfhost.directory/project/keycloak.md)
- [Zulip](https://selfhost.directory/project/zulip) (markdown: https://selfhost.directory/project/zulip.md)

## Related comparisons

- [Discourse vs Zulip](https://selfhost.directory/compare/discourse-vs-zulip)
- [Rocket.Chat vs Zulip](https://selfhost.directory/compare/rocketchat-vs-zulip)

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