How to convert WAV to MP3
Drop your WAV files into the box above, or click Choose files. You can add several at once.
Pick a bitrate. 192 kbps sounds transparent to most listeners; 320 kbps is the maximum.
Click Convert to MP3. Files are processed on your device; a few minutes of media usually takes seconds.
Download the MP3 files one by one, or all at once as a ZIP.
Why convert WAV to MP3?
WAV is uncompressed: a minute of CD-quality stereo takes about 10 MB. The same minute as a 192 kbps MP3 is about 1.4 MB, small enough to email, message or upload.
Musicians, podcasters and field recorders produce WAV files that are perfect for editing but awkward to share. MP3 is the format listeners, platforms and devices expect.
Unreleased tracks and raw interviews stay private: they're encoded on your computer, not on someone else's server.
WAV vs MP3
WAV stores audio exactly, sample for sample. That's ideal while recording and editing, but wasteful for listening. MP3 removes sounds that are hard to hear, and at 192 kbps and above most people can't tell the difference.
Keep the WAV as your master copy and share the MP3.
| Property | WAV | MP3 |
|---|---|---|
| Compression | None (uncompressed PCM) | Lossy |
| Quality | Exact, bit-for-bit | Very good at 192 kbps and above |
| File size | About 10 MB per minute of CD-quality stereo | About 1 MB per minute at 128 kbps |
| Best for | Recording, editing and mastering | Music and podcasts on any device |
| Support | Every audio editor and player | Every player, phone, car and browser |
Is it safe?
Yes. WAV to MP3 runs entirely in your browser. Your files are read and converted by your own device using built-in browser technology, so they are never uploaded to a server and nobody else can see them.
You can check this yourself: open your browser's developer tools, switch to the Network tab and convert a file. No upload requests are made.
Audio is decoded and encoded by your browser, using its built-in media engine and a WebAssembly MP3 encoder. Recordings, voice memos and interviews never leave your device.
Files stay in this tab's memory only until you remove them or close the page.
Frequently Asked Questions
How much smaller will the MP3 be?
CD-quality WAV runs at about 1,411 kbps. At 192 kbps the MP3 is roughly 86% smaller; at 320 kbps, about 77% smaller. The result shows the exact size of each file.
Which bitrate is best for music?
192 kbps is transparent for most music and listeners. Choose 320 kbps for the highest MP3 quality, or 128 kbps for speech-only recordings.
Does it support 24-bit or 96 kHz WAV files?
Yes. High-resolution WAV files are decoded and encoded as standard MP3, which is always 16-bit and at most 48 kHz.
Should I delete the WAV afterwards?
Keep it if you might edit or remaster the audio later. MP3 is lossy, so converting back to WAV won't restore the lost detail.
Is there a file size limit?
Each file can be up to 500 MB. Files are read from disk in small pieces, so long recordings don't need to fit in memory.