Shiritai — Furigana Reader for Japanese

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

Read real Japanese, everywhere. Shiritai adds furigana to Japanese text on any web page—news, social media, blogs, Wikipedia—and makes every word clickable for a dictionary lookup. ★ Furigana on any page Instant readings above kanji on any page. Adjust the furigana size to whatever feels comfortable. ★ One-click dictionary Click any word to see its reading, dictionary form, and JMdict definitions in English, German, Russian, or Spanish. Click 🔊 to hear the pronunciation. ★ Focus on what you need Color words by JLPT difficulty (N5–N1) and hide furigana for levels you've already mastered, so readings appear only where you need them. ★ Reading comfort A reading ruler dims everything except the line you're reading, while optional word spacing (分かち書き) adds small gaps between words. ★ Go deeper Select any text, right-click → "Explain with Shiritai" for a full breakdown on shiritai.app: translations, grammar, vocabulary, kanji, and a study summary. Everything runs locally in your browser—the tokenizer and dictionary are bundled with the extension. No text is sent anywhere unless you request a full explanation. Dictionary: JMdict (EDRDG). Kanji levels: kanji-data (MIT).