pyVideoTransVideo Translation / SpeechTranscription / AI Dubbing

Translate videos from one language to another with a single click — supports 30+ languages [Open source]

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Fully Automatic Video Translation

One-click completion of speech recognition → subtitle translation → AI dubbing → video composition. Automatically generates a new video with target language subtitles and voiceover.

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Multiple AI Model Support

Integrates 30+ channels including Faster-Whisper, DeepSeek, ChatGPT, and Edge-TTS. Supports both offline local models and online APIs — mix and match freely.

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Voice Cloning & Multi-Role Dubbing

Supports voice cloning with F5-TTS, CosyVoice, GPT-SoVITS, and more. Replicate the original speaker's voice, or assign different dubbing voices to different characters.

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Desktop App, Browser UI, and CLI

Desktop GUI + WebUI browser interface + CLI command line — adapts to local use, remote access, server deployment, Docker containers, and more.

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Tool Suite

Built-in batch speech transcription, batch text-to-speech, and batch SRT subtitle translation tools covering the entire video processing workflow.

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Open Source, Free, No Restrictions

Fully open source (GPL-V3). No login, no registration, no feature limits. Local models work out of the box. Third-party APIs use your own keys — fees are unrelated to the developer.