jarvisbox

WAV to MP3 Converter

Convert WAV audio files to MP3 at 96–320 kbps using ffmpeg.wasm in your browser — no upload, no account, up to 10× smaller file size.

100% client-side · no upload
Settings

Load a file to begin.

How to use

  1. Pick your .wav file using the file picker.
  2. Choose the MP3 bitrate (192 kbps is recommended for a good size/quality balance).
  3. Click Convert to MP3 and download.

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Frequently Asked Questions

Why convert WAV to MP3?
WAV files are uncompressed PCM and can be 10× larger than MP3. Conversion is essential for email, web, and mobile distribution.
What bitrate is right for voice recordings?
128 kbps mono is perfectly fine for spoken audio. Music benefits from 192–256 kbps.
Is my recording uploaded?
No. ffmpeg.wasm runs locally — your WAV never reaches a server.
Does it work on mobile?
Yes. The tool is mobile-first and works on Android Chrome and iOS Safari.

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