WAV to MP3 Converter
Convert WAV recordings to MP3 in your browser. Choose the bitrate, shrink big PCM files to shareable sizes, batch up to 10 at once. No upload, free, no account.
What this tool does
WAV files store raw, uncompressed audio, which is why a single song can weigh 40 MB and a voice memo can weigh hundreds. Drop up to 10 WAV files here and get back MP3s at the size email, chat, and upload forms actually accept. The conversion runs in your browser, so the audio never leaves your device. Free, no account, no watermark.
Each file can be up to 500 MB.
How it works
- Add your WAV files.
- Pick a bitrate, or leave the default for a solid balance.
- Convert, then download each MP3 or grab them all as a ZIP.
Supported formats
| Supported formats | WAV |
|---|---|
| MIME | audio/wav, audio/x-wav, audio/wave |
| Max file size | 524 MB |
When to use it
Recordings that are too big to send
A WAV from a recorder or DAW bounce shrinks to a few megabytes of MP3 that attaches anywhere.
Music for phones and cars
MP3 plays on every device made in the last two decades, so the converted copy travels while the WAV master stays home.
Whole batches at once
Select up to 10 WAV files and convert them in one pass, then download everything as a single ZIP.
Same sound, a fraction of the size.
The conversion runs entirely on your device. Nothing is uploaded, nothing is stored, and the original WAV files stay exactly where they are.
WAV keeps every sample raw; MP3 spends its bits where your ears care. At 192 kbps the file is roughly 13 times smaller than CD-quality PCM, and most listeners cannot tell the difference on normal speakers.
One honest note: MP3 is lossy, so this is not an archival step. Keep the WAV as your master and treat the MP3 as the copy you share.
Going the other way for editing? The MP3 to WAV converter produces the PCM file your DAW wants.
Frequently asked questions
Is this WAV to MP3 converter free?
Yes. Free, no account, no watermark, no daily cap.
Are my files uploaded to a server?
No. The conversion happens inside your browser using your device's own audio decoder plus a small encoder that loads with the page. Your files never leave your computer.
How much smaller will the MP3 be?
Roughly 10 to 14 times smaller at the default 192 kbps, depending on the WAV's bit depth and channel count. A 40 MB WAV becomes about a 3 MB MP3.
Which bitrate should I pick?
For spoken word, 128 kbps is plenty. For music, 192 kbps is the sweet spot for most listeners, and 320 kbps is there when you want the largest MP3 the format allows.
How many files can I convert at once?
Up to 10 WAV files per batch, each up to 500 MB. Run the tool again for more.
Does the MP3 keep the original's metadata?
No. The converted MP3 comes out clean. WAV files rarely carry useful tags anyway, but if you need metadata preserved, this is not the tool for the job.
Related tools
Privacy
Your file never leaves your device.
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