calibre

Name: calibre
Author: Kovid Goyal

by Kovid Goyal · GPL-3.0

calibre is the one stop solution to all your e-book needs.

Record

These URLs are the ones Kovid Goyal declares in its own manifest. We do not proxy or shorten them, and we do not host a copy.

wixmachine scopedownload.calibre-ebook.com · publisher-owned

Run this against the file on disk. If the output does not match the hash below, the file is not what Kovid Goyal published. Delete it.

Windows · PowerShell

Get-FileHash "calibre-64bit-9.11.0.msi" -Algorithm SHA256

macOS · Linux

shasum -a 256 "calibre-64bit-9.11.0.msi"

Expected output

59bd2a7fb7978665e16b7f94218479d64ddedc80ec7fccb47a6768ae348ceb3d

Signal	Finding	Points
SHA-256 hash published	1 of 1 installers ship a SHA-256 hashWithout a published hash there is no way to prove the file you downloaded is the file the publisher built.	30 / 30
Binary provenance	1 on a domain owned by the publisherThe strongest signal against a repackaged installer: the file should come from the publisher, not from a mirror nobody vouches for.	35 / 35
Served over HTTPS	1 of 1 over HTTPSAn installer fetched over plain HTTP can be modified in transit.	15 / 15
Release recency	last release about 1 months agoSoftware that has not shipped in years accumulates unpatched vulnerabilities.	15 / 15
Licence declared	GPL-3.0A declared licence tells you what you are actually allowed to do with the software.	5 / 5

Extensions calibre registers itself to handle.

Every version with a published manifest, newest first. Useful when you need an older build for compatibility.

Windows manifest: github.com/microsoft/winget-pkgs/tree/master/manifests/c/calibre/calibre/9.11.0
macOS cask: formulae.brew.sh/cask/calibre