Calibre WebvsKestra
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Calibre Web | Kestra | |
|---|---|---|
| Score | 78/100 | 82/100 |
| Rank in category | #1 of 7 in E-book Management | #3 of 32 in Workflow Automation |
| GitHub stars | 18 488 | 30 056 |
| Stars, last 30 days | +248 | +1 721 |
| Stable releases, 12 months | 2 | 59 |
| Latest release | 0.6.27 · 8 Aug 2026 | v1.3.45 · 27 Oct 2026 |
| Setup | Easy | Moderate |
| Official Docker image | No | Yes |
| License | GPL-3.0 | Apache-2.0 |
| Main language | Fluent | Java |
Which one should you pick?
Kestra scores 82/100 against 78/100 for Calibre Web, so it is the safer default.
Kestra ships more often: 59 stable releases in the past year, against 2 for Calibre Web.
If you want the quickest setup, Calibre Web is easier to run; Kestra needs more configuration.
Kestra is growing faster right now (+1 721 stars in 30 days).
Calibre Web details →Kestra details →
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