Grimoire.

A different Calibre of eBook library management.


Full-featured desktop eBook library management with a clean, clutter-free interface.

Organize, read, and send your books (and comics!) to Kindle, Kobo, and more.

Features

Built for libraries you keep.

A native desktop app: files on disk, metadata you own, and devices that connect without a cloud middleman.

  • Own your library

    Author and title folders on your disk, with metadata you control and covers that travel with each book.

  • Import what you have

    Drop files or folders on the library, or pick them yourself. EPUB, PDF, AZW3, MOBI, TXT, and CBZ/CBR.

  • Read in place

    Books open in their own window, with saved progress. Set the font, text size, and page colors. Comics can show one page or two.

  • Convert natively

    EPUB to MOBI or AZW3, TXT to EPUB, and more. Conversion happens in the app; nothing else to install.

  • Connect your eReader

    Detects Kindle, Kobo, BOOX, PocketBook, reMarkable, and more over USB. Kindle MTP send included.

Platforms

Get Grimoire

Desktop builds for macOS, Windows, and Linux. macOS disk images are signed and notarized. We detect your OS and list the matching download from the latest release.

Loading available downloads…