🎵 MP4 to MP3 Converter

Convert video to audio directly in your browser. No upload, 100% private.

Select an MP4 file (or any video). The conversion happens locally using FFmpeg.wasm. First load may take a few seconds to download the engine.

Drag and drop a video file or click to select

MP4, AVI, MOV, MKV, WebM, etc.

How does it work?

This tool uses FFmpeg.wasm – a full FFmpeg build compiled to WebAssembly. When you select a file, the FFmpeg engine is downloaded once (cached for future use). Then the conversion runs entirely in your browser – no file is uploaded to any server. Your privacy is fully protected. Supported input formats include MP4, AVI, MOV, MKV, WebM, and many others.