WAV is useful for production but can be large. MP3 is often a better delivery format when file size and compatibility matter.
GuideBest practicesBeginner
Convert WAV to MP3 without installing software
Reduce a WAV file to a compact MP3 in the browser while understanding the quality trade-off.
Why is WAV larger?
Working WAV files commonly contain uncompressed PCM samples. MP3 uses lossy compression to store much less data. WAV → MP3 is therefore best viewed as creating a delivery copy, not replacing your best source.
Convert WAV to MP3 locally
Use the audio converter, choose your WAV and select MP3 as output. The conversion runs locally in the browser. The main Audio guide also covers FLAC, OGG, Opus and M4A. For the opposite workflow, see MP3 to WAV.
Convert at the end when possible
If you still need to trim, merge or change volume, do those operations before the final MP3 encoding:
Import WAV → Trim → Adjust volume → Convert to MP3 → DownloadThe Workspace keeps this as one reusable workflow. For a lossless but smaller archive, consider FLAC; for a compact listening copy, MP3 is usually simpler. See FLAC to MP3.
Key point
Keep the WAV when it is your best source and generate MP3 when you need a lighter, widely compatible copy.