Japanese OCR
画像やスキャン文書から日本語テキストを正確に抽出
Free · No registration for images · AI-powered
Drop your file here
PNG, JPG, PDF
All Japanese scripts
Kanji, hiragana, katakana, and romaji recognized in the same document.
Vertical & horizontal
Both tategaki (vertical) and yokogaki (horizontal) text layouts.
Signs & menus
Photograph Japanese signs, restaurant menus, or product labels.
Documents & books
Scanned Japanese documents, textbooks, and manga pages.
Mixed languages
Japanese mixed with English or other languages in the same image.
Translate after extraction
Extract Japanese text then translate to English or any language.
Why Japanese OCR Is Challenging
- Recognizing three distinct writing systems (hiragana, katakana, kanji) intermixed in a single sentence
- Handling vertical text layouts (tategaki) common in novels, newspapers, and traditional documents
- Distinguishing between thousands of visually similar kanji characters with subtle stroke differences
- Processing furigana (small reading aids above kanji) without merging them into the main text line
- Correctly segmenting Japanese text which has no spaces between words
How to Extract Japanese Text from a PDF & Images
- Go to fastocr.org
- Upload your Japanese image or PDF. Language is detected automatically.
- Wait for processing — images take seconds, PDFs show a progress bar.
- Download results: searchable PDF, raw text file, or copy text directly.
Tips for Better Japanese OCR Accuracy
- Specify vertical text mode if your document uses tategaki (top-to-bottom) layout
- Use 300+ DPI scans to preserve fine stroke details that distinguish similar kanji
- For documents with furigana, expect the small reading text to appear inline — manual cleanup may be needed
- Crop headers and footers before processing to avoid mixing navigation text with body content
- Review kanji carefully — visually similar characters like 土/士, 末/未, 大/犬 are common OCR errors
Common Use Cases for Japanese OCR
- Digitizing Japanese business contracts and corporate filings
- Extracting text from Japanese manga and light novel scans for translation
- Converting scanned Japanese academic papers and patent documents
- Processing Japanese government forms, tax documents, and certificates
- Archiving historical Japanese texts printed in traditional vertical layout
Frequently Asked Questions
Does Japanese OCR handle all three writing systems?
Yes. FastOCR recognizes hiragana, katakana, and kanji in the same document, including mixed text with English characters.
Can it read vertical Japanese text?
Yes. Our advanced AI engine supports vertical (tategaki) text recognition. For best results, ensure the scan is straight and not rotated.
How accurate is Japanese OCR on kanji?
FastOCR achieves 96% accuracy on printed Japanese text. Complex or rare kanji may have lower accuracy — always review output.
Is Japanese OCR free?
Image OCR is free with no registration. PDF processing requires a free account and includes 3 free PDFs per month.
Free for images. No registration required.