mp3bat
WAV → MP3

Private by design

Convert WAV to MP3 without uploading a thing.

WAV files are uncompressed, so they're large — often ten times the size of an MP3. Converting to MP3 shrinks them for phones, email, and players while keeping the audio that matters.

STAYS ON YOUR DEVICE
Drop an audio or video file, or click to choose
It opens here, in this tab — not on our servers.
WAV · M4A · AAC · OGG · FLAC · MP3 · MP4 · MOV · MKV · WEBM → MP3
✓ Your browser— — ✕ — —our servers
About WAV → MP3. WAV is lossless and uncompressed, so the MP3 will be dramatically smaller. 320 kbps keeps the quality difference inaudible to most listeners; 192 kbps is the sweet spot for size.

What is WAV?

WAV (Waveform Audio File Format) stores raw, uncompressed PCM audio. It's the studio-standard container for recordings and exports because nothing is thrown away — which is also why the files are so big.

How to convert WAV to MP3

  1. Drop your WAV file into the box above (or click to choose it).
  2. Pick a bitrate — 320 kbps for best quality, 192 kbps for a smaller file.
  3. Click Convert to MP3. It runs in this tab, on your device.
  4. Download your MP3. Nothing was ever uploaded.

FAQ

Will converting WAV to MP3 lose quality?

Some, by definition — MP3 is a lossy format. But at 256–320 kbps the difference is inaudible to almost everyone, while the file gets roughly 10× smaller. For archiving, keep the WAV; for listening and sharing, the MP3 is fine.

Why are my WAV files so large?

WAV stores uncompressed PCM audio, so a few minutes of stereo can run tens of megabytes. MP3 compresses that down by an order of magnitude, which is the main reason people convert.

Is the conversion done on a server?

No. Your WAV is decoded and re-encoded entirely in your browser. The file never leaves your device.

Other conversions

New to this? See how the on-device conversion works, or the guide on choosing a bitrate.