# CasaOS vs Proton Mail Bridge

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

| | CasaOS | Proton Mail Bridge |
|---|---|---|
| Score | 76/100 ✓ | 60/100 |
| Rank in category | #1 of 22 in Home Server | #11 of 33 in Communication |
| GitHub stars | 37 392 ✓ | 1 575 |
| Stars, last 30 days | +138 | — |
| Stable releases, 12 months | 0 | 10 ✓ |
| Latest release | — | v3.27.1 · 8 Oct 2026 |
| Setup | Easy ✓ | Moderate |
| Official Docker image | No | No |
| License | Apache-2.0 | GPL-3.0 |
| Main language | Go | Go |

## Which one should you pick?

CasaOS scores 76/100 against 60/100 for Proton Mail Bridge, so it is the safer default.

Proton Mail Bridge ships more often: 10 stable releases in the past year, against 0 for CasaOS.

If you want the quickest setup, CasaOS is easier to run; Proton Mail Bridge needs more configuration.

CasaOS is growing faster right now (+138 stars in 30 days).

## Details

- [CasaOS](https://selfhost.directory/project/casaos) (markdown: https://selfhost.directory/project/casaos.md)
- [Proton Mail Bridge](https://selfhost.directory/project/proton-bridge) (markdown: https://selfhost.directory/project/proton-bridge.md)

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Source: https://selfhost.directory/compare/casaos-vs-proton-bridge