BuySoftwaresOnlineCalibre
The one-stop ebook manager
Office & ProductivityGPL-3.0Windows · macOS · LinuxPopular
About Calibre
Calibre manages your ebook library end to end: convert between EPUB, MOBI, PDF and more, edit metadata, sync to e-readers, download news, and read books in a built-in viewer. It has been the ebook standard tool for over 15 years.
Calibre is completely free and open source (GPL-3.0) — no trials, no subscriptions, no locked features. Always download from the official website to avoid bundled malware.
Free alternative to: Paid ebook managers / DRM-free library apps
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