This application uses AI to convert classical Japanese cursive script (kuzushiji) into digital text. Simply take a photo of the script, and the app will process it on-device, supporting over 7,000 characters and optimized for historical documents.
2.0
October 30, 2026
- New "Try a sample page" on the home screen: try Classical and Modern reading right away - The app now opens to a home screen with Take Photo, Photos, History and Settings - Document scan (automatic page edges), a tilt guide and four-corner correction - Tilted pages and lines no longer pick up text from neighbouring lines - Edit Boxes on the result screen and re-read only what you changed - New design with washi paper, Mincho type and vermilion accents - Fixed a crash when reading a second or later page - Reads up to 1000 lines per page, with clearer line numbers - Fixed corners moved in four-corner correction sometimes snapping back
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KotenOCR is an application that uses artificial intelligence to recognize and convert classical Japanese cursive script (kuzushiji) into digital text. It allows users to take a photo of the script and have it processed on their device.
No, KotenOCR performs all processing on-device, meaning it does not require an internet connection to function. This makes it convenient for use anywhere, anytime.
KotenOCR specializes in recognizing classical Japanese cursive script, known as kuzushiji. It supports over 7,000 kanji, hiragana, and katakana characters, and is optimized for Edo-period woodblock prints and manuscripts.
The app is powered by the National Diet Library's AI model (NDL Koten OCR-Lite). While specific accuracy percentages are not provided, the model is designed for recognizing historical Japanese scripts.
KotenOCR is available for iPhone and iPad devices. It is designed to run on these Apple platforms.
The latest version of KotenOCR is 2.0, which was last updated on October 30, 2026. Updates typically include improvements to recognition accuracy and feature enhancements.
KotenOCR has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content concerns.
No, KotenOCR does not contain advertisements. The app is free to use and does not display any ads to the user.
