How it works
Complete the job in three clear steps
- Choose a video file with audio from your device.
- Set the timing or output options and create an MP3 audio file.
- Preview and download the result before closing the page.
Private Lucaden media tool
Video to MP3 Converter
Extract a video's audio track as a downloadable MP3 with selectable quality.
Free to use Your media stays on this device; the FFmpeg WebAssembly runtime downloads when needed.
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Important
Check the result before relying on it
Keep an untouched copy of important source files. Browser processing depends on available device memory, and you should inspect every downloaded result before deleting the original.
Practical details
What this Lucaden tool does
FFmpeg decodes the source audio, removes video streams, and encodes a widely compatible MP3. Choose a quality preset for speech, everyday listening, or higher-fidelity music.
Lucaden writes the source into FFmpeg's temporary in-browser file system, creates the output, then removes both temporary files. The source media is not uploaded to Lucaden.
Included capabilities
- MP4, WebM, MOV, and other decoded inputs
- Three MP3 quality presets
- No video data in output
- Local audio preview
Useful for
- Save interview audio
- Extract a lecture track
- Create a podcast draft
- Listen without the video
Questions
About this tool
Will this improve audio quality?
No. Re-encoding cannot restore detail missing from the source.
Why can conversion take time?
The browser downloads FFmpeg once and then decodes and encodes the media using your device CPU.
Open-source foundations
Built transparently
Lucaden documents its standards sources, architectural references, and permissive runtime dependencies while keeping this workspace consistent with the Lucaden interface.