harnessvsProton Mail Bridge
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| harness | Proton Mail Bridge | |
|---|---|---|
| Score | 80/100 | 60/100 |
| Rank in category | #3 of 28 in CI/CD | #11 of 33 in Communication |
| GitHub stars | 38 761 | 1 575 |
| Stars, last 30 days | +327 | +0 |
| Stable releases, 12 months | 6 | 10 |
| Latest release | v2.28.2 · 20 Apr 2026 | v3.27.1 · 8 Oct 2026 |
| Setup | Easy | Moderate |
| Official Docker image | Yes | No |
| License | Apache-2.0 | GPL-3.0 |
| Main language | Go | Go |
Which one should you pick?
harness scores 80/100 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 6 for harness.
If you want the quickest setup, harness is easier to run; Proton Mail Bridge needs more configuration.
harness is growing faster right now (+327 stars in 30 days).
harness details →Proton Mail Bridge details →