無料Japaneseテキスト読み上げオンライン

Yes. Google Gemini's Japanese TTS correctly resolves kanji readings based on context, choosing between on-yomi and kun-yomi as appropriate.

Modern neural TTS produces natural pitch accent patterns for standard Tokyo Japanese, understood and sounds natural to all Japanese speakers.

Yes. Japanese frequently borrows English words rendered in katakana. The AI naturally switches between Japanese and katakana English pronunciations.

Japanese requires an input method (IME) built into Windows and macOS. You type romaji (like "konnichiwa") or kana, then convert to Hiragana, Katakana, or Kanji using the spacebar, with the toolbar letting you switch modes. No special hardware is needed.

AI Narrator speaks Standard Japanese (ja-JP) based on the Tokyo dialect, the national standard clearly understood everywhere in Japan. It does not reproduce regional dialects like Kansai (Osaka) or Tohoku speech.

Japanese TTS is ideal for corporate training and compliance in Japan's business market, plus audio guides and museum narration for the tourism sector. It also suits manga and light-novel excerpts for accessibility and listening practice for Japanese learners.

Japanese uses Hiragana, Katakana, and Kanji together, and including the correct characters — especially kanji — helps the AI pick the right reading and pitch accent. Watch pitch accent (which distinguishes words like "hashi") and the difference between on-yomi and kun-yomi kanji readings, which the model resolves from context.