Convert WAV files to MP3 with bitrate control. Batch convert multiple files and download individually or as a ZIP.
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Explore channelsA WAV to MP3 converter takes your uncompressed WAV audio files and encodes them into the MP3 format. WAV files are lossless and store every sample of audio data, which makes them large. A 5-minute song in WAV is typically around 50 MB. MP3 uses lossy compression to shrink that same file down to about 5-8 MB while keeping the audio sounding nearly identical.
This tool runs entirely in your browser. Your files never leave your device. It uses the Web Audio API to decode your WAV and the lamejs library to encode MP3. You pick a bitrate, click convert, and download your MP3 files.
Both formats store audio, but they work differently under the hood.
| WAV | MP3 (320 kbps) | MP3 (128 kbps) | |
|---|---|---|---|
| Type | Lossless (PCM) | Lossy | Lossy |
| Quality | Perfect | Very good | Decent |
| 5 min song | ~50 MB | ~7.5 MB | ~3.75 MB |
| Best for | Production, uploads | Sharing, general use | Previews, voice |
| Browser support | Universal | Universal | Universal |
WAV is the format you want for production, mixing, mastering, and uploading to platforms like SoundCloud. MP3 is the format you want for sharing files, sending demos, or when storage and bandwidth matter.
Converting your files takes a few seconds. Here is how:
The bitrate controls how much audio data the MP3 file keeps per second. Here is a practical breakdown:
When in doubt, go with 320 kbps. The file size difference between 128 and 320 is only a few megabytes for a typical song, but the quality gap can be significant.
Not every situation calls for conversion. Keep your files in WAV when:
Convert to MP3 when you need to share files quickly, send demos via email, upload to platforms that do not require lossless, or save storage space.
SoundCloud recommends uploading in WAV or FLAC. When you upload a lossless file, SoundCloud handles the compression and gets the best possible result for streaming. If you only have an MP3, upload it as-is rather than converting to WAV first - you cannot recover quality that was already lost.
That said, you might need MP3 versions of your tracks for other purposes: sending to blogs, sharing on social media, or attaching to emails. This tool lets you keep your original WAV for SoundCloud and create MP3 copies for everything else.
Looking to get your track on a SoundCloud channel? Premierely connects artists with channels for premieres and reposts.
Find channels on PremierelyYes. MP3 is a lossy format, so some audio data is permanently removed during compression. At 320 kbps the difference is nearly inaudible for most listeners. Once converted, you cannot recover the original WAV quality from the MP3 file.
320 kbps for music distribution and sharing. 192 kbps for general use where file size matters. 128 kbps for voice recordings or previews where quality is less critical.
No. All processing happens locally in your browser using the Web Audio API and lamejs encoder. Your audio files never leave your device. Nothing is uploaded, stored, or shared with anyone.
100 MB per file. WAV files are large by nature, so this limit accommodates most songs. A typical 5-minute stereo WAV at 44.1 kHz is about 50 MB.
Yes. Drag and drop multiple files or use the file picker to select several WAV files. Each file is converted independently and you can download them individually or as a single ZIP archive.
Always upload WAV or FLAC to SoundCloud. SoundCloud re-compresses every upload to 128 kbps for streaming, so a lossless source gives the best result. Use MP3 for sharing files via email, messaging, or platforms that do not require lossless.
A typical 5-minute WAV file converts in 2-5 seconds depending on your device. Processing happens entirely in your browser using JavaScript, so faster devices will convert faster.