WAV to MP3 Converter
Convert WAV to MP3 in your browser. Free, no signup, no upload.
How It Works
Select a WAV file from your device and choose a bitrate. Click Convert and the MP3 file is generated right in your browser using the LAME encoder. No file is ever uploaded to a server.
Once conversion is complete, you can preview the audio and download the MP3 file.
Why Convert WAV to MP3?
WAV files store uncompressed audio, which means excellent quality but very large file sizes. A 3-minute WAV file can be over 30 MB. MP3 compresses the audio significantly — the same file at 192 kbps is around 4 MB — with minimal perceptible quality loss.
MP3 is universally supported by every device, player, and platform, making it ideal for sharing, streaming, and storage.
Which Bitrate Should I Choose?
The bitrate sets how much data the MP3 uses per second of audio. Higher bitrates sound closer to the original WAV but produce larger files. This tool offers four common bitrates:
| Bitrate | Quality | Approx. size (3 min) | Best for |
|---|---|---|---|
| 128 kbps | Good | ~2.9 MB | Podcasts, voice, small files |
| 192 kbps | Very good | ~4.3 MB | Everyday music (default) |
| 256 kbps | Excellent | ~5.8 MB | High-quality music |
| 320 kbps | Maximum | ~7.2 MB | Archiving, critical listening |
Common Uses
Converting WAV to MP3 is handy for shrinking recordings from a DAW or field recorder before sharing, making studio exports small enough to email, preparing audio for a website or podcast feed, and freeing up storage since MP3 files are a fraction of the size of the original WAV. Because everything runs locally, it is also a private way to convert sensitive recordings without uploading them anywhere.
Frequently Asked Questions
How do I convert a WAV file to MP3?
Select your WAV file, choose an MP3 bitrate, and click Convert to MP3. The file is encoded right in your browser using the LAME encoder, then you can preview the audio and download the MP3. Nothing is uploaded to a server.
Can I convert WAV to MP3 at 320 kbps?
Yes. The bitrate menu offers 128, 192, 256, and 320 kbps. Pick 320 kbps for the highest MP3 quality and largest file, or a lower bitrate for a smaller file. The default is 192 kbps, a good balance for most audio.
Is this WAV to MP3 converter really free and private?
Yes. It is completely free with no signup, and your audio never leaves your device. The WAV is decoded and encoded to MP3 entirely in your browser, so it works even offline once the page has loaded.
Is there a file size limit?
There is no fixed size limit imposed by the tool, but very large WAV files are held in your browser's memory during conversion, so extremely large files may be slow or fail on low-memory devices. A few hundred MB is usually fine on a modern computer.
Does converting keep the original quality?
MP3 is a lossy format, so some data is discarded during compression, but the difference is minimal at higher bitrates. The converter preserves your file's original sample rate and channel layout (mono or stereo) and only re-encodes the audio to MP3.