calibre
calibre is an e-book management app for macOS that helps you organize libraries, convert formats, edit metadata, and send books to reading devices.
What is calibre?
calibre is a desktop e-book management application for macOS and other platforms. It helps readers build and organize personal e-book libraries, sort books by metadata, and search large collections more easily. Users can convert e-books between many common formats, edit book details and covers, view supported files, and transfer books to compatible e-readers and mobile devices. calibre also includes tools for downloading news into e-book form, accessing a content server, and extending the app with plugins. It is especially useful for people who keep large e-book collections or want more control over formats and library organization than a basic reader app provides.
Key features
- Organize e-books into searchable libraries with tags, authors, series, and custom metadata
- Convert books between many common e-book formats
- Edit book metadata, covers, and library details
- Read supported e-book files with built-in viewer tools
- Send books to compatible e-readers and other devices
- Download news sources and package them as e-books
- Access your library through the built-in content server
- Extend functionality with plugins
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Mostly safe
calibre is a well-known e-book management application, and its website provides official downloads and installer signatures. Its file access and device communication behavior are consistent with managing local e-book libraries and transferring books to reading devices. Because it can import, convert, edit, and serve library content, you should review any plugins you install and confirm you downloaded the app from the official calibre site before granting it access to your book files.
Recommendation: Keep calibre if you use it to organize, convert, read, or transfer e-books. If you no longer manage an e-book library, you can remove it, but doing so may also remove access to app-specific settings, plugins, and library workflows you rely on.
Common paths
/Applications/calibre.app~/Library/Preferences/calibre~/Library/Preferences/calibre-customize~/Library/Preferences/calibre-debug~/Library/Preferences/calibre-parallel~/Library/Preferences/calibre-server~/Library/Preferences/calibre-smtp~/Library/Preferences/calibre.gui2~/Library/Preferences/ebook-viewer
Preference paths
~/Library/Preferences/net.kovidgoyal.calibre.plist
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