1 free run a day

WAV to MP3 Converter

Compress WAV audio to MP3 and cut file size by up to 90%. Choose bitrate up to 320 kbps.

Free once a day, no account needed. One file up to 25 MB. Unlimited with Image & Media or All Tools.See plans

Choose WAV filesdrag and drop, or paste · up to 25 MB · 1 file at once

Your files never leave your device

How to convert WAV to MP3

1
Choose your WAV files
Click the upload area or drag files onto it. Nothing is uploaded — files are opened locally.
2
Adjust the settings
Pick audio quality, then press the convert button.
3
Download the result
Save each file individually or everything at once as a ZIP.

WAV recordings are huge. Convert them to MP3 to share by email or chat, upload to podcast hosts, or save space — with quality you choose.

WAV files are uncompressed, so a few minutes of audio can be too big to email or to upload to a podcast host. MP3 drops the detail people are least likely to hear, and a four-minute song usually shrinks from about 40 MB to under 10 MB.

For music, choose a high bitrate. For voice recordings a lower bitrate is usually enough. Keep your WAV as the master copy, because MP3 is a lossy format and the removed detail can’t be recovered from the converted file.

Read the full guide with screenshots

What is WAV?

WAV is an uncompressed audio format with perfect quality and very large files, common in recording and audio editing.

What is MP3?

MP3 is the universal compressed audio format. It plays on every device, car stereo and music app with small file sizes.

Is it private?

Yes. Unlike upload-based converters, ZapMorph processes files inside your browser tab, so the file stays on your device. It is never transmitted, stored or logged — close the tab and it’s gone.

Frequently asked questions

Is the wav to mp3 converter free?

Yes, once a day. Convert one file up to 25 MB a day without an account. A free account gets one run a day on any Pro tool with files up to 50 MB; Pro and Lifetime plans are unlimited.

Are my files uploaded to a server?

No. The conversion runs entirely in your browser, so your files never leave your device. We only count how many files you convert — never their names or contents.

What is the maximum file size?

Up to 25 MB per file without an account, 50 MB with a free account, and 1 GB on Pro. Very large files also depend on your device’s memory.

Can I convert multiple WAV files at once?

Yes. Select several WAV files at once — up to 5 on the free plan or 50 on Pro — and download all results in a single ZIP.

Does it work on Mac, Windows, iPhone and Android?

Yes. It works in any modern browser — Chrome, Edge, Firefox and Safari — on desktop and mobile, with nothing to install.

Will I lose quality converting WAV to MP3?

MP3 is lossy, so some detail is removed. At high bitrates most people can’t hear the difference. Keep the WAV if you may need to edit the audio later.