Yaku translates VN dialogue in real time — right over the game. Pick a dialogue region once, choose your engine, and read instantly with our free built-in AI or your own DeepL key.
Keep it light with a movable overlay, or go full immersion with a mirrored game window where the Japanese is replaced in place.
A simple, fast, movable box that shows the translated line on top of your game. Drag it anywhere. Zero setup beyond picking the text region.
A separate game-view window that mirrors the VN frame with the Japanese line visually replaced by English — like playing an official localization.
Yaku ships with our own large language model — no API keys, no subscriptions, no cost. Prefer DeepL? Plug in your key and switch any time.
Our own LLM, hosted and paid for by us. Tuned for visual-novel dialogue — names, honorifics, and tone come through naturally.
Already love DeepL? Drop in your own API key for crisp, industry-grade machine translation and switch engines whenever you like.
No automatic dialogue-box detection to fight with — you tell Yaku exactly where the text is, once.
Drag a box over the game's text area to set the OCR region. You're in control — it reads exactly where you point it.
→Go with the free built-in Yaku AI, or paste a DeepL key. Switch between them whenever you want.
→Pick the floating overlay or the mirror window, and the English appears in real time as the story unfolds.
Download Yaku and play your favorite visual novels with translation built right in — completely free.
Download Yaku — Free