Yatsu Reader Docs¶

Yatsu is a browser-based ebook reader for Japanese learners, with support for Chinese and Korean books. Open Yatsu to start reading.

Start here¶

Using the Library: Import a book, organize your library, or make a backup.
Using the Reader: Turn pages, save bookmarks, highlight text, and adjust the layout.
Yatsu Accounts and Settings Sync: Sync reading preferences between devices.
Using Yatsu Offline: Save the app and your books before going offline.
What Yatsu adds to Ttsu: Compare features and find migration instructions.
Frequently Asked Questions: Find answers to common problems.
How to Report Bugs: Download diagnostics and send a report.

Reading Tracking: Record reading time, set goals, and review statistics.
Chinese Support: Choose Chinese glyph forms, fonts, and character counting.
Korean Support: Choose Korean fonts and count Hangul for progress and statistics.

Google Drive Sync: Connect Drive to store books and sync reading data.
WebDAV Storage: Connect a NAS or another WebDAV server.
Storage Source Security: Protect saved connection credentials.
Statistics and Sync: Set up reading history across devices or troubleshoot missing statistics.
Migrating from Ttsu to Yatsu: Transfer a library with a backup ZIP.
Recovering Old GitHub Pages Data: Export books from Yatsu's old address.
Compatibility with Ttsu: Use a shared custom storage source with both apps.