Extract Audio from Video (MP4 to MP3)
Separate the audio track from MP4, MOV, or WebM videos as MP3 or WAV.
How it works step by step
- 01Pick a video file from your phone or computer (MP4, MOV, WebM, or MKV).
- 02Select MP3 (128k, 192k, or 320k) or uncompressed WAV output.
- 03Press Process and download the isolated audio file immediately.
Technical specs & privacy
No slow uploads for large video files
Traditional converters force you to upload hundreds of megabytes just to get a 4 MB audio track. Our WebAssembly engine decodes the stream locally on your device.
Studio-grade bitrate options
Pick 128 kbps for voice notes and lectures, 192 kbps for podcasts, or 320 kbps / WAV PCM when preserving musical detail matters.
Private by architecture
Recorded meetings, lectures, and personal clips remain inside your browser sandbox at all times.
| Supported input formats | MP4 · MOV · WEBM · MKV |
|---|---|
| Output target format | MP3 · WAV |
| Conversion engine | FFmpeg WebAssembly (in-browser local) |
| Storage & Privacy | 100% Local · Files never leave your device |
Frequently asked questions
How do I extract MP3 audio from an MP4 video on my phone?
Tap Choose file, pick the video from your camera roll, keep MP3 selected, and press Process. Your extracted MP3 downloads straight to your device.
Should I choose MP3 or WAV?
Choose MP3 for everyday listening, messaging apps, and small file sizes. Choose WAV if you plan to edit the audio track in Audacity, Premiere, or Logic Pro.
Are my videos uploaded to the cloud?
Never. Audio extraction runs locally inside your browser tab using WebAssembly, so your files never leave your computer or phone.
Does it support iPhone .MOV recordings?
Yes. QuickTime .MOV videos from iPhone and iPad, along with MP4, WebM, and MKV files, are supported out of the box.
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