Mastodon

Free Knowledge Preservation Foundation

Back

The complete e-book toolkit: library management, format conversion between dozens of e-book formats, device synchronisation, metadata editing and a content server. Kovid Goyal's project has become the indispensable tool for keeping personal digital libraries alive and portable.

StatusActive
Categoryoffice
LicenseGPL-3.0-only
Websitehttps://calibre-ebook.com/

Preservation rating

80/100
What's this?

The Preservation Rating scores how well this entry is archived — not how good the software is. It's calculated automatically from what's already on this page: working mirrors, documentation, a reproducible build, a clearly identified license, and complete metadata. Nothing here is entered by hand; it updates itself whenever the entry changes.

Learn more
Mirror redundancy5 out of 5 (5/5)
Documentation3 out of 5 (3/5)
Reproducibility2 out of 5 (2/5)
License5 out of 5 (5/5)
Metadata5 out of 5 (5/5)

Source code / mirrors

External documentation links

Official docs
Offline HTML
PDF
Screenshots
Manual

Details

ChecksumsSHA256
Reproducible buildNo
HistoryStarted by Kovid Goyal in 2006 as libprs500; renamed calibre in 2008.
Versions9.x
MaintainersKovid Goyal & community
Last verified2026-07-02

Verification

Not yet due — next check in 17 hours

Verified by: FKPFSignature: fkpfLast verification: July 28, 2026 11:47 PM
Windows — Verified
SHA-256calibre-64bit-9.11.0.msi
SHA-256calibre-portable-installer-9.11.0.exe
macOS — Verified
SHA-256calibre-9.11.0.dmg
Linux — Verified
SHA-256calibre-9.11.0.tar.xz
Other — Verified
SHA-256calibre-9.11.0-arm64.txz
SHA-256calibre-9.11.0-x86_64.txz

Verification History

July 28, 2026 11:47 PMVerified
July 28, 2026 11:47 PMVerified
July 27, 2026 11:29 PMVerified
July 26, 2026 11:13 PMVerified
July 25, 2026 10:59 PMVerified
July 24, 2026 10:45 PMVerified
July 22, 2026 11:37 AMVerified
July 21, 2026 11:23 AMVerified
July 20, 2026 11:07 AMVerified
July 19, 2026 10:52 AMVerified
July 18, 2026 10:37 AMVerified
July 17, 2026 10:22 AMVerified
July 16, 2026 10:07 AMVerified
July 15, 2026 9:52 AMVerified
July 14, 2026 9:37 AMVerified
July 13, 2026 9:22 AMVerified
July 12, 2026 8:54 AMVerified
July 11, 2026 2:53 AMVerified
July 10, 2026 12:00 AMVerified