Convert WAV to MP3
Convert WAV to MP3 on your device. Choose your file, convert, and check the result before sharing.
Drop the wav file
Drag your WAV onto the page or click to browse. It is read locally, never sent anywhere.
Choose MP3 and bitrate
Pick 128, 192, 256 or 320 kbps. 192 kbps is the default. Click Convert to start processing in this tab.
Save the mp3
The finished MP3 downloads straight back to your device. Nothing touched a server on the way.
Why convert here, not there
No upload, ever
Audio files are personal. WAV to MP3 here happens inside one browser tab, end to end.
Local conversion
Conversion runs locally after you click Convert. The first audio or video conversion may need to download the converter engine.
No account, no daily cap
No account or daily conversion quota. The per-file cap is 2 GB, and available device memory can impose a lower practical limit.
The two formats, briefly
| WAV | WAV is a container commonly used for PCM audio. This converter writes 16-bit PCM; the source sample rate and channels are not deliberately changed. | |
|---|---|---|
| MP3 | MP3 is a lossy audio format. This converter encodes it at the selected bitrate rather than copying the original audio stream. | |
When you need this
- Use MP3 when your receiving app or player does not accept WAV. This page re-encodes the audio, so keep the original and check the download in that app before replacing it.
Tested on a large file
On 26 October 2026 we converted a synthetic stereo WAV, 100 minutes and 1009 MB, to MP3 at 192 kbps in desktop Chrome. It produced a 137 MB MP3 of the same length, with no upload.
We checked every MP3 frame in the result and decoded short parts from the start, middle and end. We did not play the whole file.
Not tested: phones, Safari, files near the 2 GB cap, or other formats. Large files depend on your device's free memory.
Want to see the flow first? Download a 10-second generated tone, not a recording (440 Hz, 1.7 MB): synthetic-440hz-10s.wav, then drop it above.
WAV vs MP3: what changes
| WAV | MP3 | |
|---|---|---|
| Kind | Audio | Audio |
| Compression | 16-bit PCM output here | Lossy audio |
| Typical size | Depends on the file and encoding settings. | Measure the exported file; it may be larger. |
| Opens on | Check the source in your app and browser. | Check the downloaded file in the receiving app. |
| Best for | Keep the original as your source. | MP3 workflows, subject to the limits below. |
Keep the original. Compare the exported file before sharing or replacing it.
For the full format breakdown, read the WAV vs MP3 guide.
Good to know
- The audio bitrate choices are 128, 192, 256 and 320 kbps, with 192 kbps as the default. Lower bitrates usually reduce size but can make loss more audible.
- First use downloads the audio/video engine (about 30 MB). The input cap is 2 GB, but available browser memory can run out below that.