# mCaptcha vs Rspamd

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

| | mCaptcha | Rspamd |
|---|---|---|
| Score | 55/100 | 65/100 ✓ |
| Rank in category | #32 of 78 in Security | #1 of 4 in Anti-Spam |
| GitHub stars | 2 498 | 2 559 ✓ |
| Stars, last 30 days | +5 | +27 ✓ |
| Stable releases, 12 months | 0 | 14 ✓ |
| Latest release | — | 4.2.3 · 21 Oct 2026 |
| Setup | Moderate ✓ | Advanced |
| Official Docker image | Yes | Yes |
| License | AGPL-3.0 | Other |
| Main language | Rust | C |

## Which one should you pick?

Rspamd scores 65/100 against 55/100 for mCaptcha, so it is the safer default.

Rspamd ships more often: 14 stable releases in the past year, against 0 for mCaptcha.

If you want the quickest setup, mCaptcha is easier to run; Rspamd needs more configuration.

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

## Details

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

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