Yokuyo — Pitch Accent Panel

Shift+hover over Japanese text to visualize pitch accent contours. Works seamlessly alongside Yomitan or any dictionary.

See the melody of Japanese — not just word-by-word accent, but how a whole sentence rises and falls. Hold Shift and hover over any Japanese text in your browser, and Yokuyo shows its pitch accent contour: the continuous high/low movement across the entire phrase, including how accent phrases connect and where downstep happens. This is the sentence-level intonation a pitch-accent dictionary can't show you. It uses the same Shift+hover gesture as popup dictionaries, so it sits naturally beside them — including Yomitan — with both panels appearing together. FEATURES • Shift+hover any Japanese sentence to see its pitch (F0) contour • OJAD-style high/low notation above the kana • Listen to the sentence with natural speech synthesis • Per-word pitch accent rule references • Draggable, resizable, collapsible panel ⚠️ REQUIRES THE FREE YOKUYO DESKTOP APP (WINDOWS) This extension is a companion to the Yokuyo desktop application. The desktop app must be installed and running on your computer — it does the analysis and synthesis locally. The extension on its own cannot generate pitch data. Download: https://rwpersson.github.io/yokuyo-releases/ PRIVACY Yokuyo collects no data and uses no remote servers. The text you hover is processed only by the Yokuyo app running on your own machine. Full policy: https://github.com/rwpersson/yokuyo-releases/blob/main/PRIVACY.md VOICE CREDITS Audio is synthesized with VOICEVOX: VOICEVOX:玄野武宏(CV:ガロ) / VOICEVOX:四国めたん / VOICEVOX:剣崎雌雄 / VOICEVOX:あいえるたん (See the extension's options page for details.)