Audio

WAV to MP3

Convert an uncompressed WAV to a smaller MP3.

Audio file

Choose a file to convert. It's processed locally — never uploaded. Tip: add several files to convert them all at once.

Settings

Output

Result appears here after you select

{ } How to use

  1. Choose the WAV.
  2. Pick a bitrate — 192 kbps is a good default, 320 when the source is worth it.
  3. Select Process, then download the MP3.

{ } How it works

WAV to MP3 works on the file you upload. Adjust the options, then select Process ▸ and it runs entirely in your browser — nothing is uploaded to a server — then shows the result in the Output panel.

Inputs

  • Audio file — upload a file (audio/*); it is read locally in your browser
  • Bitrate — choose one — 128 kbps, 192 kbps, 320 kbps (default: 192 kbps)

Output

A downloadable MP3 file — use the Download button in the Output panel.

{ } Common uses

  • Make a recording small enough to email or upload.
  • Turn a studio or field recording into a file that plays everywhere.
  • Cut a WAV to roughly a tenth of its size.

{ } Limitations

  • MP3 is lossy: this discards audio detail permanently in order to make the file smaller, and converting back to WAV will not bring any of it back. Keep the WAV if it is your master copy.
  • The bitrate is constant at the rate you pick, so a quiet passage costs as many bytes as a loud one.
  • Sample rate and channels are carried over from the source, except that MP3 cannot store every sample rate — an unusual one is resampled by the encoder.

{ } FAQ

Is my data uploaded to a server?

No. Everything runs locally in your browser — your files never leave your device.

Can I process more than one file at once?

Yes — add several files and they’re all processed and downloaded together as a ZIP.

Is this tool free?

Yes — it’s completely free and needs no sign-up.

Which bitrate should I choose?

192 kbps is a good default for music and hard to distinguish from the WAV on ordinary equipment. 128 is fine for speech. 320 is the most MP3 offers and is worth it only for material you mean to keep — it is still lossy, just less so.