Calibre WebvsKamailio
Two self-hosted projects, compared on the numbers selfhost.directory tracks live: score, popularity, release cadence and setup effort.
| Calibre Web | Kamailio | |
|---|---|---|
| Score | 78/100 | 66/100 |
| Rank in category | #1 of 7 in E-book Management | #4 of 16 in VoIP |
| GitHub stars | 18 488 | 2 985 |
| Stars, last 30 days | +248 | +31 |
| Stable releases, 12 months | 2 | 12 |
| Latest release | 0.6.27 · 8 Aug 2026 | 6.1.5 · 15 Oct 2026 |
| Setup | Easy | Advanced |
| Official Docker image | No | No |
| License | GPL-3.0 | Other |
| Main language | Fluent | C |
Which one should you pick?
Calibre Web scores 78/100 against 66/100 for Kamailio, so it is the safer default.
Kamailio ships more often: 12 stable releases in the past year, against 2 for Calibre Web.
If you want the quickest setup, Calibre Web is easier to run; Kamailio needs more configuration.
Calibre Web is growing faster right now (+248 stars in 30 days).
Calibre Web details →Kamailio details →
Swap a project
Keep Calibre Web, compare it with
Keep Kamailio, compare it with