Blackbox exportervsSemaphore UI
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Blackbox exporter | Semaphore UI | |
|---|---|---|
| Score | 70/100 | 73/100 |
| Rank in category | #3 of 51 in Monitoring & observability | #12 of 166 in Developer Tools |
| GitHub stars | 5 922 | 14 336 |
| Stars, last 30 days | +16 | +148 |
| Stable releases, 12 months | 3 | 20 |
| Latest release | v0.29.1 · 21 Oct 2026 | v2.18.31 · 7 Oct 2026 |
| Setup | Easy | Easy |
| Official Docker image | Yes | Yes |
| License | Apache-2.0 | MIT |
| Main language | Go | Go |
Which one should you pick?
Semaphore UI scores 73/100 against 70/100 for Blackbox exporter, so it is the safer default.
Semaphore UI ships more often: 20 stable releases in the past year, against 3 for Blackbox exporter.
Semaphore UI is growing faster right now (+148 stars in 30 days).
Blackbox exporter details →Semaphore UI details →
Swap a project
Keep Blackbox exporter, compare it with
Keep Semaphore UI, compare it with