Grimoire.Your library, on your disk.
A local SQLite catalog with Calibre-style folders, a built-in reader, and Kindle sync without installing Calibre.
Features
Built for libraries you keep.
Grimoire manages ebooks the way a desktop tool should: files on disk, metadata you own, and devices that connect without a cloud middleman.
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Own your library
Calibre-style on-disk layout with a local metadata.db and Author/Title folders you control.
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Import what you have
Bring in EPUB, PDF, AZW3, MOBI, TXT, and CBZ/CBR without fighting your existing collection.
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Read in place
Open books in the built-in reader and pick up where you left off with saved progress.
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Convert natively
EPUB to MOBI or AZW3, TXT to EPUB, and more. No Calibre install required.
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Send to Kindle
USB and MTP sync including Colorsoft. Also detects Kobo, BOOX, and similar devices.
Platforms
Get Grimoire
Desktop builds for macOS, Windows, and Linux. Grab the latest release and keep your library offline-first.