Your doujinshi library,
everywhere.
Catalog, organize, and read your doujinshi collection on every device. Cloud sync, ISBN barcode scanning, and a reader purpose-built for the format.
Everything you need to manage your collection
A complete toolkit for organizing, discovering, and reading the doujinshi you own.
Unified Search
Search multiple catalog providers at once. Find a book by title, ISBN, or barcode and pull in cover art, tags, and metadata in seconds.
Cloud Sync
Real-time synchronization across all your devices. Your library stays up to date on iOS and Android, automatically.
Smart Reader
RTL, LTR, vertical scroll, and webtoon modes. Page preloading, gesture controls, and a distraction-free experience.
Beautiful Theming
Polished light and dark modes that respect your system preferences. Pick your accent color and watch the entire app — including the cover thumbnails — adapt to it.
Auto-Import Rules
Automatically import new books by author, tag, or category. Run on a schedule or trigger manually.
Auto-Merge
Cross-source metadata enrichment. Finds matching entries across providers and merges tags, authors, and cover art into one clean record.
Statistics
Visualize your collection with charts and breakdowns by tags, authors, circles, languages, and more.
Extensions
Install additional catalog providers. The modular extension system makes it easy to add new sources you trust.
Barcode Scanning
Scan ISBN barcodes with your camera to instantly look up and add physical books to your library.
OCR Search
Photograph a book cover and use on-device AI to extract the title and search for it automatically.
See it in action
A polished, native experience on every platform.
Library grid view
Search & discovery
Built-in reader
Granular settings & sources
Statistics dashboard
Available everywhere
Use Tsumihon on your phone or tablet.