# Calibre Web Automated vs UmlautAdaptarr

> Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.

| | Calibre Web Automated | UmlautAdaptarr |
|---|---|---|
| Score | 73/100 ✓ | 40/100 |
| Rank in category | #2 of 19 in Ebook Management | #120 of 142 in Media Management |
| GitHub stars | 6 504 ✓ | 309 |
| Stars, last 30 days | +172 | — |
| Stable releases, 12 months | 9 ✓ | 3 |
| Latest release | v4.0.8 · 28 Sept 2026 ✓ | v0.7.6 · 5 Aug 2026 |
| Setup | Moderate ✓ | Moderate |
| Official Docker image | Yes | Yes |
| License | GPL-3.0 | — |
| Main language | JavaScript | C |

## Which one should you pick?

Calibre Web Automated scores 73/100 against 40/100 for UmlautAdaptarr, so it is the safer default.

Calibre Web Automated ships more often: 9 stable releases in the past year, against 3 for UmlautAdaptarr.

Calibre Web Automated is growing faster right now (+172 stars in 30 days).

## Details

- [Calibre Web Automated](https://selfhost.directory/project/calibre-web-automated) (markdown: https://selfhost.directory/project/calibre-web-automated.md)
- [UmlautAdaptarr](https://selfhost.directory/project/umlautadaptarr) (markdown: https://selfhost.directory/project/umlautadaptarr.md)

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