MP4 to MP3 on Linux
Convert MP4 to MP3 on your Linux. No app to download. Open your browser, drop your file, and convert. Done in seconds.
Drop your MP4 file here or click to browse
MP4 (.mp4) · Max 20 MB
Runs in Firefox and Chrome on any Linux distro. No terminal commands. No package managers. AudioUtils uses WebAssembly to run the conversion engine locally. Your audio stays on your device.
If you prefer the command line, FFmpeg is an alternative. But AudioUtils is faster for quick one-off conversions.
Both MP4 and MP3 are lossy formats. Each re-encode can degrade quality slightly. Convert once and keep the result. The output is identical regardless of which device or browser you use.
Frequently Asked Questions
Will I lose audio quality converting MP4 to MP3?
Most MP4 files already use AAC audio compression. Converting to MP3 involves re-encoding, which can introduce minimal quality loss. At 320kbps, the difference is negligible for most listeners.
Can I extract audio from YouTube downloads?
If you have a locally saved MP4 file, yes. This tool processes files on your device — it doesn't download from URLs.
What happens to the video data?
The video track is discarded entirely. Only the audio is extracted and converted to MP3. Your file size drops dramatically.
About MP4
The most common video container format. Used by YouTube, smartphones, and cameras. Extract audio from any MP4 file instantly.
About MP3
The most widely used audio format. Great compatibility, small file size. Ideal for music, podcasts, and general use.