compare
calibre vs Calibre-Web
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | calibre | Calibre-Web |
|---|---|---|
| Language | Python | Fluent |
| Licence | GPL-3.0 | GPL-3.0 |
| Stars | 26k | 18k |
| Latest | v9.15.0 | 0.6.27 |
| Last push | 2026-10-06 | 2026-10-03 |
| Release cadence | about 21 days between releases | about 175 days between releases |
| Active contributors | 21+ commit authors on the default branch in the last 90 days | 10 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace Amazon Kindle. Alternatives to Amazon Kindle →
PartialcalibreThe library for your own DRM-free books, sent to a Kindle by email or USB, not the store.
PartialCalibre-WebThe cloud library for your own DRM-free books, synced to Kobo devices or sent to a Kindle by email, not the store.
Both replace Google Play Books. Alternatives to Google Play Books →
PartialcalibreManages and converts your own ebooks and serves them to browsers and OPDS apps from its content server, with no store.
PartialCalibre-WebBrowse and read a Calibre library of your own ebooks in the browser and OPDS apps, with no store.
calibre
calibre
✓ signed The latest release, v9.15.0, carries a signature GitHub verified.
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Calibre-Web
unsigned The latest release, 0.6.27, carries no signature GitHub could verify.
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