# Calibre vs Zed Attack Proxy (ZAP)

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

| | Calibre | Zed Attack Proxy (ZAP) |
|---|---|---|
| Score | 83/100 ✓ | 80/100 |
| Rank in category | #1 of 19 in Ebook Management | #4 of 78 in Security |
| GitHub stars | 26 269 ✓ | 16 058 |
| Stars, last 30 days | +270 ✓ | +243 |
| Stable releases, 12 months | 18 | 31 ✓ |
| Latest release | v9.17.0 · 23 Oct 2026 | w2026-10-23 · 23 Oct 2026 |
| Setup | Easy ✓ | Easy |
| Official Docker image | No | Yes ✓ |
| License | GPL-3.0 | Apache-2.0 |
| Main language | Python | Java |

## Which one should you pick?

Calibre scores 83/100 against 80/100 for Zed Attack Proxy (ZAP), so it is the safer default.

Zed Attack Proxy (ZAP) ships more often: 31 stable releases in the past year, against 18 for Calibre.

## Details

- [Calibre](https://selfhost.directory/project/calibre) (markdown: https://selfhost.directory/project/calibre.md)
- [Zed Attack Proxy (ZAP)](https://selfhost.directory/project/zed-attack-proxy-zap) (markdown: https://selfhost.directory/project/zed-attack-proxy-zap.md)

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Source: https://selfhost.directory/compare/calibre-vs-zed-attack-proxy-zap