Shiritai — Furigana Reader for Japanese

Add furigana readings to Japanese text on any web page and explain selected text with study cards.

Read Japanese anywhere on the web. Shiritai adds furigana readings above the kanji on any web page—then explains the text you select with translation, grammar, vocab, kanji, and JLPT notes. Tired of copy-pasting Japanese into a dictionary every few words? Shiritai turns the entire web into reading practice. Whether you're scrolling X/Twitter, reading a blog, watching YouTube, browsing news, or reading manga and novels online, furigana appears instantly above the kanji so you can keep reading without losing your place. What it does • Instant furigana — Automatically adds hiragana readings above kanji on any page, so you can read real Japanese instead of studying isolated sentences. • One-click toggle — Turn readings on or off anytime from the popup, per page. Keep pages clean when you don't need help. • Explain any selection — Select Japanese text, right-click, and open a full study card in Shiritai: natural + literal translation, grammar breakdown, vocabulary, kanji meanings and readings casual/social-media nuance, and an estimated JLPT level. Why install it • Read real Japanese sooner. Authentic posts and articles are the fastest way to improve—and now you can actually read them. • Stay in flow. No more jumping between tabs, dictionaries, and translator apps. The reading help is right where the text is. • Private by design. Furigana is generated entirely in your browser. Your page content doesn't leave your device just to add readings. • Built for learners. Explanations are tuned for N5–N2 learners, with casual and social-media nuance you won't find in textbooks. Perfect for Japanese learners who want to learn from the real internet—the posts, comments, and articles you actually want to read.