Free, offline AI video dubbing studio for Windows — re-voice any video into another language with a cloned voice, translated captions, and on‑screen‑text localization. 100% local, zero Python: one native .exe (Rust + C++/CUDA); every model and engine downloads with a button.
English · Русский · 中文 · Español · Português · Français
Dub Studio turns any video into a dubbed version in another language — with the speaker's own voice cloned, captions translated, and on‑screen text localized right on the frame. Drop a clip, and a smart auto‑pass builds the first draft; then a live editor puts every caption, voice, blur box, font and title under your control with an instant preview.
By default everything runs locally on your machine — no cloud, no subscription; your footage and your voiceprint never leave your computer. And if your PC is weak (can't run the local Gemma/Higgs) or you want more speed and quality, the heavy stages (translation, vision, TTS, transcription) can optionally be offloaded to the cloud via OpenRouter — each engine picked independently (local ↔ cloud), with voices auto-cast by speaker gender (beta). The key is stored locally; everything is off by default.
It's a fully native rewrite. No embeddable Python, no torch, no CUDA wheels. The whole pipeline is Rust + native C++/CUDA engines (GGUF/ONNX): one process, fast startup, low VRAM. Models, engines, CUDA/VC++ runtime and ffmpeg are downloaded and installed by the app itself on first run. NVIDIA is recommended but not required — separation ships a CPU build, diarization and ASR run on CPU, and the heavy stages (translation, vision, TTS) go to the cloud, so a dub can be built on a machine with no NVIDIA at all.
▶ Watch the before/after video showcase → — real clips dubbed end‑to‑end on a local GPU: different videos, different modes, different languages, nothing left the machine.
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| 🎙️ Full dub · EN→RU | 🗣️ |