# capjs vs Stalwart Mail Server

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

| | capjs | Stalwart Mail Server |
|---|---|---|
| Score | 72/100 | 79/100 ✓ |
| Rank in category | #15 of 78 in Security | #2 of 16 in Mail Server |
| GitHub stars | 8 203 | 15 484 ✓ |
| Stars, last 30 days | +351 | +681 ✓ |
| Stable releases, 12 months | 16 | 31 ✓ |
| Latest release | standalone@3.1.13 · 23 Sept 2026 | v1.0.1 · 28 Oct 2026 ✓ |
| Setup | Easy ✓ | Moderate |
| Official Docker image | Yes | Yes |
| License | Other | AGPL-3.0-only AND LicenseRef-SEL |
| Main language | JavaScript | Rust |

## Which one should you pick?

Stalwart Mail Server scores 79/100 against 72/100 for capjs, so it is the safer default.

Stalwart Mail Server ships more often: 31 stable releases in the past year, against 16 for capjs.

If you want the quickest setup, capjs is easier to run; Stalwart Mail Server needs more configuration.

## Details

- [capjs](https://selfhost.directory/project/capjs) (markdown: https://selfhost.directory/project/capjs.md)
- [Stalwart Mail Server](https://selfhost.directory/project/stalwart-mail-server) (markdown: https://selfhost.directory/project/stalwart-mail-server.md)

---
Source: https://selfhost.directory/compare/capjs-vs-stalwart-mail-server