Convert MP4 to MP3
Extract audio from MP4 videos. Save as high-quality MP3 files locally.
Initializing conversion engine...
Files (0)
Drop files here or click to upload
Processed locally. Your files never leave your device.
Configuration
Default high-quality audio extraction settings will be used.
How to convert MP4 to MP3 locally
1Select File
Drag and drop your MP4 file into the browser window, or click the upload area to select from your device.
2Convert Instantly
SoloConvert processes your file locally using your browser's power. No uploading, no waiting, and 100% private.
3Download MP3
Once the conversion is complete, download your high-quality MP3 file immediately.
100% Private
Files never leave your device. All processing happens in your browser.
Lightning Fast
No upload wait times. Instant conversion powered by WebAssembly.
Large Files Support
Process massive files without upload size limits. Generous daily free tier.