CalibrevsZed 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.
Calibre details →Zed Attack Proxy (ZAP) details →
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