# Rspamd vs Urbit

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

| | Rspamd | Urbit |
|---|---|---|
| Score | 65/100 ✓ | 63/100 |
| Rank in category | #1 of 4 in Anti-Spam | #3 of 8 in Operating System |
| GitHub stars | 2 559 | 3 622 ✓ |
| Stars, last 30 days | +27 ✓ | +5 |
| Stable releases, 12 months | 14 ✓ | 6 |
| Latest release | 4.2.3 · 21 Oct 2026 ✓ | 408k-2 · 4 Aug 2026 |
| Setup | Advanced ✓ | Advanced |
| Official Docker image | Yes ✓ | No |
| License | Other | MIT |
| Main language | C | hoon |

## Which one should you pick?

Rspamd scores 65/100 against 63/100 for Urbit, so it is the safer default.

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

Rspamd is growing faster right now (+27 stars in 30 days).

## Details

- [Rspamd](https://selfhost.directory/project/rspamd) (markdown: https://selfhost.directory/project/rspamd.md)
- [Urbit](https://selfhost.directory/project/urbit) (markdown: https://selfhost.directory/project/urbit.md)

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Source: https://selfhost.directory/compare/rspamd-vs-urbit