Calibre Webvsgaps
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Calibre Web | gaps | |
|---|---|---|
| Score | 78/100 | 49/100 |
| Rank in category | #1 of 7 in E-book Management | #70 of 142 in Media Management |
| GitHub stars | 18 486 | 577 |
| Stars, last 30 days | +255 | — |
| Stable releases, 12 months | 2 | 0 |
| Latest release | 0.6.27 · 8 Aug 2026 | — |
| Setup | Easy | Moderate |
| Official Docker image | No | Yes |
| License | GPL-3.0 | MIT |
| Main language | Fluent | JavaScript |
Which one should you pick?
Calibre Web scores 78/100 against 49/100 for gaps, so it is the safer default.
Calibre Web ships more often: 2 stable releases in the past year, against 0 for gaps.
If you want the quickest setup, Calibre Web is easier to run; gaps needs more configuration.
Calibre Web is growing faster right now (+255 stars in 30 days).
Calibre Web details →gaps details →
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