# Calibre Web Automated vs ZPan

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

| | Calibre Web Automated | ZPan |
|---|---|---|
| Score | 73/100 ✓ | 56/100 |
| Rank in category | #2 of 19 in Ebook Management | #8 of 11 in Cloud Storage |
| GitHub stars | 6 503 ✓ | 2 080 |
| Stars, last 30 days | +171 ✓ | +2 |
| Stable releases, 12 months | 9 | 10 ✓ |
| Latest release | v4.0.8 · 28 Sept 2026 ✓ | v2.9.0 · 30 Aug 2026 |
| Setup | Moderate ✓ | Moderate |
| Official Docker image | Yes | Yes |
| License | GPL-3.0 | AGPL-3.0 |
| Main language | JavaScript | Typescript |

## Which one should you pick?

Calibre Web Automated scores 73/100 against 56/100 for ZPan, so it is the safer default.

ZPan ships more often: 10 stable releases in the past year, against 9 for Calibre Web Automated.

Calibre Web Automated is growing faster right now (+171 stars in 30 days).

## Details

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

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