Convert MP4 to MP3
Recorded a talk on your phone and only need the audio? Drop the file here, MP3 is set. Since nothing is uploaded, even large videos are done fairly quickly.
Queued Files
| File | Category | Target Format | Status | Action |
|---|---|---|---|---|
No files selected yet. Drag & drop files into the zone above or click to browse. | ||||
Batch Processing0
How it works: Convert MP4 to MP3
- Drop a video (MP4, MOV, WebM or MKV) into the box.
- MP3 is set. Pick WAV instead for lossless audio.
- Convert and save the audio file.
All features are available in the tool All-In-One File Converter.
Frequently asked questions
How large can the video be?
That depends on your device's memory, since everything happens in the browser. A normal laptop handles a few hundred megabytes without trouble.
Can I trim the MP3 afterwards?
Yes, cut the start and end in the audio trimmer.
Similar tasks
How does this tool work?
Converts files across multiple domains (3D/CAD meshes, video, raster & vector graphics, firmware & ROMs, structured datasets, documents, audio) directly in your browser.
Drop files into the upload zone or select them via file picker. The tool automatically detects each file category and populates compatible target formats. Convert files individually or in batch with a live progress bar, then download them one by one or bundled into a single ZIP archive. All processing runs 100% locally on your machine.
Where are my data processed?
Only in your browser. Your data is not sent to any server.
The tool calculates and converts with JavaScript right on your device. Input and files are not sent to us or anyone else. You can check this yourself: load the page, disconnect from the internet, and the tool keeps working in the open tab.