HarborvsUnderstudy
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Harbor | Understudy | |
|---|---|---|
| Score | 80/100 | 48/100 |
| Rank in category | #1 of 12 in Container Registry | #110 of 209 in AI Agents |
| GitHub stars | 29 640 | 465 |
| Stars, last 30 days | +186 | +0 |
| Stable releases, 12 months | 10 | 0 |
| Latest release | v2.14.6 · 23 Oct 2026 | — |
| Setup | Moderate | Moderate |
| Official Docker image | No | No |
| License | Apache-2.0 | MIT |
| Main language | Go | Typescript |
Which one should you pick?
Harbor scores 80/100 against 48/100 for Understudy, so it is the safer default.
Harbor ships more often: 10 stable releases in the past year, against 0 for Understudy.
Harbor is growing faster right now (+186 stars in 30 days).
Harbor details →Understudy details →
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