# Calibre Web vs Kestra

> 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).

## Details

- [Calibre Web](https://selfhost.directory/project/calibre-web) (markdown: https://selfhost.directory/project/calibre-web.md)
- [Kestra](https://selfhost.directory/project/kestra) (markdown: https://selfhost.directory/project/kestra.md)

## Related comparisons

- [Kestra vs prefect](https://selfhost.directory/compare/kestra-vs-prefect)

---
Source: https://selfhost.directory/compare/calibre-web-vs-kestra