# Calibre Web vs sapphire

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

| | Calibre Web | sapphire |
|---|---|---|
| Score | 78/100 ✓ | 51/100 |
| Rank in category | #1 of 7 in E-book Management | #34 of 120 in AI Assistant |
| GitHub stars | 18 488 ✓ | 321 |
| Stars, last 30 days | +248 ✓ | +1 |
| Stable releases, 12 months | 2 | 11 ✓ |
| Latest release | 0.6.27 · 8 Aug 2026 | v2.13.1 · 20 Oct 2026 ✓ |
| Setup | Easy ✓ | Advanced |
| Official Docker image | No | Yes ✓ |
| License | GPL-3.0 | AGPL-3.0 |
| Main language | Fluent | Python |

## Which one should you pick?

Calibre Web scores 78/100 against 51/100 for sapphire, so it is the safer default.

sapphire ships more often: 11 stable releases in the past year, against 2 for Calibre Web.

If you want the quickest setup, Calibre Web is easier to run; sapphire needs more configuration.

Calibre Web is growing faster right now (+248 stars in 30 days).

## Details

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

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