# Calibre Web Automated vs Serendipity

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

| | Calibre Web Automated | Serendipity |
|---|---|---|
| Score | 73/100 ✓ | 53/100 |
| Rank in category | #2 of 19 in Ebook Management | #7 of 24 in Blogging |
| GitHub stars | 6 506 ✓ | 229 |
| Stars, last 30 days | +170 ✓ | +0 |
| Stable releases, 12 months | 9 ✓ | 2 |
| Latest release | v4.0.8 · 28 Sept 2026 ✓ | 2.6.1 · 22 Jul 2026 |
| Setup | Moderate | Moderate |
| Official Docker image | Yes ✓ | No |
| License | GPL-3.0 | BSD-3-Clause |
| Main language | JavaScript | PHP |

## Which one should you pick?

Calibre Web Automated scores 73/100 against 53/100 for Serendipity, so it is the safer default.

Calibre Web Automated ships more often: 9 stable releases in the past year, against 2 for Serendipity.

Calibre Web Automated is growing faster right now (+170 stars in 30 days).

## Details

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

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