100% local — files never leave your device

Convert to MP3, right in your browser.

Drop a file, wait a moment, download the MP3. No uploads, no accounts, no server round-trip — the conversion runs entirely on your machine using WebAssembly FFmpeg.

Drag & drop files here, or click to browse
WAV · FLAC · M4A · AAC · OGG · OPUS · WMA · AIFF · MP4 · MOV · MKV · WEBM → MP3
Output quality
Converter engine loads on first use (~9 MB, cached after)

How it works

01

Your file is loaded straight into an in-browser FFmpeg build — nothing is sent over the network.

02

FFmpeg decodes and re-encodes the audio to MP3 at your chosen bitrate, right on your CPU.

03

The finished MP3 is handed straight back to your browser's download — it's never stored anywhere.