Add furigana (reading aids) to every kanji in a Japanese PDF automatically — free, unlimited, no account required. Your file is processed entirely inside your browser and is never uploaded anywhere, so it's safe to use with textbooks, handouts, or original teaching materials.
Try it now with a sample PDF, or upload your own
📄 Open Furigana Maker →Note: the tool itself is in Japanese, but the interface is simple and icon-driven (upload, download, edit) — most users get the hang of it in under a minute without reading Japanese. A short visual guide is below.
Japanese learners — read authentic materials (news articles, manga scripts, government forms, business documents) without stopping to look up every kanji.
Teachers of Japanese abroad — prepare reading materials with furigana for your students in minutes, without sending copyrighted or student-related content to any server.
Only have a Word, Excel, or PowerPoint file? See how to convert it to PDF first.
Yes. No account, no time limit, no usage limit.
Nothing is uploaded. The PDF is read and processed entirely inside your browser using JavaScript, so it's safe to use even with materials containing personal or copyrighted content.
Yes, commercial and institutional use is fine — schools, language centers, and individual teachers are all welcome to use it.
Convert them to PDF first, then upload. See the step-by-step conversion guide.
A scanned image PDF has no text data, so furigana can't be added directly. The guide also covers how to run OCR (text recognition) on a scan first.
No — automatic furigana isn't 100% accurate, especially for names, rare readings, or words that can be read more than one way. You can click any furigana to fix it, but please don't treat it as an authoritative answer for how a word is read. It's meant to make reading smoother, not to replace a dictionary.
Ready to try it?
📄 Open Furigana Maker →日本語のページはこちら。