WAV to MP3 Converter
Convert WAV to MP3 and shrink files by up to 90%. Choose 128–320 kbps, mono or stereo and batch convert to a ZIP. Free, runs in your browser, never uploaded.
- No upload — 100% private
- Instant, on your device
- Free, no sign-up
- Works offline once loaded
How it works
How to use WAV to MP3 Converter
Drop one or more WAV files from your recorder, DAW or sound library.
Pick an MP3 bitrate — 320 kbps for masters, 192 kbps for everyday listening, 128 kbps for voice.
Optionally mix down to mono or normalize the volume.
Click Convert to MP3 and download the file or a ZIP of all of them.
Why use it
Why use our WAV to MP3 Converter tool
Up to 90% smaller
A 50 MB stereo WAV becomes about 7 MB as a 192 kbps MP3 — easy to email, upload or store on a phone.
Any WAV
16-, 24- and 32-bit float WAV, mono or stereo, at any sample rate. Surround files are mixed down to stereo.
Normalize while converting
Quiet field or voice recordings can be brought up to −1 dB in the same step.
Private studio files
Unreleased tracks and interviews never leave your computer — conversion is done in the browser.
FAQ
Frequently asked questions
How much smaller will my MP3 be?
CD-quality WAV is about 10 MB per minute. At 192 kbps an MP3 is about 1.4 MB per minute, and at 128 kbps about 1 MB per minute.
Will I hear a difference?
At 256–320 kbps most people can't tell an MP3 from the WAV. Keep the original WAV if you plan to edit the audio again.
Can I convert 24-bit WAV files?
Yes. 24-bit and 32-bit float WAV files are decoded at full precision before MP3 encoding.
Are my WAV files uploaded?
No. They are read and encoded on your device, which also makes conversion fast for large files.
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