ConvertSass

Audio to MP3 Converter

WAV, OGG, M4A → MP3 · Runs in your browser · Zero uploads

Conversion Settings

Engine Ready

Drag and drop your audio file here

or click to browse from your computer

MP3, WAV, OGG, M4A

Your file never leaves this browser tab

Privacy Guarantee

  • 1

    Local Decoding

    Browser Web Audio API reads the file locally — no network traffic.

  • 2

    WASM Encoding

    lamejs runs at near-native speed entirely inside your browser tab.

  • 3

    Secure Export

    A Blob URL is generated locally. Close the tab — the data is gone.

Supported Formats

WAV
MP3
OGG
M4A
Output MP3 only
Max file size Browser memory limit