calibre for MAC

Free, open-source e-book manager: organize your library, convert formats, read, edit and send books to your e-reader.

calibre Overview

calibre is a free all-in-one e-book manager. It keeps your whole e-book library in one place, with covers, series, tags and ratings, and it fetches missing metadata and covers from the internet. It converts books between almost every format, such as EPUB, AZW3, MOBI, PDF and DOCX, sends them to Kindle, Kobo and other e-readers, and includes its own e-book viewer and a full e-book editor. calibre has been developed by Kovid Goyal since 2006.

calibre is free and open source under the GPL-3.0 license, with no ads and no paid version. The current version needs macOS 14 Sonoma or later; for older Macs, the calibre website offers the last version that still works (for example 7.26 for macOS 13 and 6.29 for macOS 11–12). New versions come out every few weeks.

Key Features

calibre does everything you need to look after an e-book collection.

Library: organize books by author, series, tags, ratings and custom columns, with fast search.
Metadata: download covers and book details automatically from online sources.
Conversion: convert between EPUB, AZW3, MOBI, PDF, DOCX, TXT and many more formats.
E-reader support: send books to Kindle, Kobo, Nook and other devices over USB or wirelessly.
Viewer: read every format in the built-in viewer, with highlights, notes and read-aloud.
Editor: edit EPUB and AZW3 files directly, with a check-book tool to fix problems.
News: download news from hundreds of websites and turn it into an e-book.
Content server: share your library with phones and tablets through a web browser.

What’s New in Version 9.16.0

calibre 9.16 adds natural-sounding voices and more.

Read aloud: new high-quality Kokoro voices that sound much more natural
News download: support for sites that block automated access, such as The Economist and The Atlantic
PDF input: support for right-to-left text and better handling of multi-column pages
Support for images in the AVIF format
Faster startup, sorting and searching in large libraries
Kobo driver: support for newer firmware

calibre FAQ

Is calibre free?

Yes. calibre is free and open source under the GPL-3.0 license, with no ads and no paid version. The developer accepts donations.

Which macOS version does calibre need?

The current version needs macOS 14 Sonoma or later. The calibre website lists the last version for older Macs: 7.26 for macOS 13, and 6.29 for macOS 11 and 12.

Which e-book formats can calibre convert?

Almost all common ones, including EPUB, AZW3, MOBI, PDF, DOCX, RTF, TXT, HTML and FB2.

Can calibre send books to my Kindle?

Yes. Connect the Kindle by USB, or use calibre's email sending, and calibre converts the book to a format your Kindle can read if needed.

Can calibre remove DRM from e-books?

No. calibre does not remove DRM; it works with DRM-free books, such as those you buy from DRM-free stores or create yourself.

Can I edit an EPUB in calibre?

Yes. Its built-in e-book editor lets you change the text, styles and table of contents of EPUB and AZW3 books, and check them for errors.

Can calibre read books aloud?

Yes. The e-book viewer has a read-aloud feature, and version 9.16 added more natural-sounding Kokoro voices.

Can I read my calibre library on my phone?

Yes. Start calibre's content server and open your library in a browser on your phone or tablet on the same network.

Who makes calibre?

calibre was created by Kovid Goyal in 2006, who still leads its development with help from many contributors.

Where does the calibre download on calibre.FULLMAC.app come from?

The download button leads to the official calibre download page for macOS at https://calibre-ebook.com/download_osx. calibre.FULLMAC.app does not change or repackage the app.