Calibre is an e-book library manager. It can view, convert and catalog e-books in most of the major e-book formats. It can also talk to many e-book reader devices. It can go out to the Internet and fetch metadata for your books. It has a cornucopia of features divided into the following main categories:

  • Library Management
  • E-book conversion
  • Syncing to e-book reader devices
  • Downloading news from the web and converting it into e-book form
  • Comprehensive e-book viewer
  • Content server for online access to your book collection

Is Calibre an e-book reader?

No, Calibre is an e-book manager in which you can organize existing e-books into virtual libraries, displaying, editing, creating and converting e-books, as well as syncing e-books with a variety of e-readers.

Can I write an e-book with Calibre?

Yes. Calibre can turn your personal documents to e-books or create them from scratch. It has automatic style helpers and scripts generating the book's structure.

Which devices does Calibre support?

Calibre is compatible with almost any e-reader, phone or tablet, as well as Windows, Mac and Linux devices. You can transfer your e-books from one device to another in seconds. Calibre will send the best file format for your device, converting it if needed, automatically.

What formats does Calibre support conversion to/from?

Calibre supports the conversion of many input formats to many output formats such as:

  • Input Formats: AZW, AZW3, AZW4, CBZ, CBR, CB7, CBC, CHM, DJVU, DOCX, EPUB, FB2, FBZ, HTML, HTMLZ, LIT, LRF, MOBI, ODT, PDF, PRC, PDB, PML, RB, RTF, SNB, TCR, TXT, TXTZ
  • Output Formats: AZW3, EPUB, DOCX, FB2, HTMLZ, OEB, LIT, LRF, MOBI, PDB, PMLZ, RB, PDF, RTF, SNB, TCR, TXT, TXTZ, ZIP.

Can Calibre read RSS feeds?

Yes, Calibre can deliver news to your device from hundreds of news sources or any RSS feed.

Does Calibre offer cloud storage for my library?

Calibre doesn't offer cloud storage, but it does integrate with most major cloud providers, including Google Drive, Dropbox, and OneDrive. This way, you can set up your eBook library in the cloud and access the content from your phone or tablet.

What's New

New features

  • Kobo driver: Add support for the new color Kobo devices
    • Closes tickets: 2060886
  • Edit book: Add a setting to control cursor width under Preferences->Editor settings
  • Edit book: Regex-function mode: Show a confirmation popup when closing the function editor when there are unsaved changes

Bug fixes

  • Fix undocked Quickview dialog not being restored at startup
    • Closes tickets: 2060314
  • Windows: Fix an issue where closing a maximized calibre window to the system tray and then reconnecting with remote desktop would cause a blank calibre window to be displayed
    • Closes tickets: 2044118

Improved news sources

  • El Correo
  • Eenadu
  • ORFonline
  • NatGeo
  • Harpers Magazine
  • New Yorker
  • Business Today
  • The Week
  • Asahi Shimbun
  • Outlook Magazine
  • Get books: Update Kobo store plugin for website changes EPUB Input: Use a translated name for the cover page

New news sources

  • Bergfreunde Blog by VoHe
  • Live Law and Politico.eu by unkn0wn

Improved news sources

  • Caravan
  • Global Times
  • New York Review of Books
  • Himal Southasian
  • The Week
  • CBC Canada