Input
video.mp4
Output
video.mp3
Audio & Video Tools
Batch MP4 to MP3 Audio Extractor
Extract audio tracks from multiple media files and encode MP3 locally in your browser. The default is 192 kbps with individual downloads and ZIP export.
MP4MP3Audio extraction
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Quick actions
Copy this tool URL or open the system share sheet on a supported device.
Media tools
MP4 to MP3
Extract audio from MP4, M4V, or MOV files in batches and encode it as MP3. Files stay in your browser.
0–100%
The first run downloads a local media engine of roughly a dozen MB. Desktop: 10 files, 150 MB each. Limited devices: 3 files, 50 MB each.
Use cases
- Extract audio from course videos
- Batch-process interview recordings
- Export video soundtracks as MP3
How to use
- Add media files
- Choose an audio bitrate
- Process and download MP3 files or a ZIP
Example input and output
FAQ
Are videos uploaded?
No. Demuxing and encoding run in browser WebAssembly.
Why does the first run take longer?
The media engine loads and initializes only after processing starts.
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