MP4 to MP3 — Free & Private
Extract audio from any video file directly in your browser. No upload, no account — powered by WebAssembly.
Drag & drop files here, or click to browse
Files are processed entirely on your device and are never uploaded to any server.
or import from URL
Frequently Asked Questions about MP4 to MP3 conversion
What video formats can I extract audio from?
MP4 is the primary format. MOV and WebM files also work in most browsers.
What quality is the extracted MP3?
The audio is extracted at 192 kbps by default, which provides excellent quality for music and voice recordings.
Will I lose any audio quality?
A small amount of quality loss occurs since MP3 uses lossy compression. For lossless audio, consider keeping the MP4 or converting to AAC.
Are my files kept private?
Yes. Audio extraction runs entirely in your browser using FFmpeg WebAssembly — your files never leave your device.
Can I extract audio from very large video files?
Yes, though processing time increases with file size. Free users are limited to 50 MB; Pro users can process up to 500 MB.