Download calibre
E-book manager, converter, reader, and library organizer.
Latest stable version
Open official calibre download
9.9.0Verified 2026-06-06 from calibre GitHub releases.
calibre downloads by platform
System requirements
- macos: macOS 11 or later recommended
- windows: Windows 10 or later recommended
- linux: Modern 64-bit Linux distribution
Frequently asked questions
Is calibre free?
Yes, calibre is free and open source.
Which calibre version should I download for Mac?
Choose the macOS download that matches Apple Silicon or Intel when separate options are shown.
Can calibre convert e-book formats?
Yes, calibre can convert between many common e-book formats.