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.

Latest version

Latest calibre version: 9.11.0

The current verified stable version of calibre is 9.11.0.

Stable release9.11.0

Release date: 2026-07-03. Source verified: 2026-07-17. Source: calibre GitHub releases.

E-book manager, converter, reader, and library organizer.

Choose the right calibre download

Source-backed version details

Catalog source

calibre GitHub releases

Verification status

Source verified: 2026-07-17.

Release date

Release date: 2026-07-03.

calibre latest-version FAQ

What is the latest version of calibre?

The latest verified stable version of calibre is 9.11.0. The release date in the catalog is 2026-07-03.

Where should I verify calibre releases?

Use calibre GitHub releases or the official calibre website before critical installs. What-Version links to official sources and does not mirror installers.

Where do I download calibre?

Use the official calibre download page to choose the right build for macOS, Windows, Linux, iOS, or Android when one is verified.