OpenDub — AI Video Dubbing & Translator by OpenDub
Dub and translate videos locally with AI voice cloning, synced timing, and auto subtitles in 17 languages. Open source & free.
Available on Firefox for Android™Available on Firefox for Android™
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About this extension
OpenDub is an open-source, local-first video dubbing tool that translates videos into other languages while preserving the original voice, tone and timing. It separates speech from music and effects, transcribes and translates each sentence, generates a cloned voice, and adds translated subtitles — while keeping your video on your device.
FEATURES
• Dub videos into 17 languages
• Separate speech from music and sound effects
• Transcribe and translate speech
• Clone the original voice and tone
• Match dubbed speech to the original timing
• Replace the original voice or create a voice-over
• Burn translated subtitles into the video
• Edit and re-dub individual lines
• Compare original and dubbed versions
Supports local OmniVoice, or your own Higgs Audio API key.
The browser version supports videos up to 5 minutes. Desktop versions are available for Windows and macOS.
OpenDub is open source and licensed under AGPL-3.0.
GitLab: https://gitlab.com/open-dubapp/OpenDub
FEATURES
• Dub videos into 17 languages
• Separate speech from music and sound effects
• Transcribe and translate speech
• Clone the original voice and tone
• Match dubbed speech to the original timing
• Replace the original voice or create a voice-over
• Burn translated subtitles into the video
• Edit and re-dub individual lines
• Compare original and dubbed versions
Supports local OmniVoice, or your own Higgs Audio API key.
The browser version supports videos up to 5 minutes. Desktop versions are available for Windows and macOS.
OpenDub is open source and licensed under AGPL-3.0.
GitLab: https://gitlab.com/open-dubapp/OpenDub
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Permissions and data
Optional permissions:
- Access your data for 127.0.0.1
Data collection:
- The developer says this extension doesn't require data collection.
Optional data collection, according to the developer:
- Website content
More information
- Add-on Links
- Version
- 1.1.1
- Size
- 20.73 MB
- Last updated
- a month ago (Oct 15, 2026)
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