Online WAV to MP3 Compressor
A WAV file stores audio uncompressed, about 10 MB per minute in CD quality. An MP3 at 192 kbps needs about 1.4 MB for the same minute.
When to Convert WAV to MP3
Convert to MP3 when the file has to travel: an email attachment, a podcast upload, a website, a phone with little storage. MP3 plays on practically every device and app. Keep the WAV as your master copy, because the conversion cannot be undone.
What Happens to the Quality?
MP3 is a lossy format: it removes detail that is hard to hear in order to save space. At 192 kbps and above, most listeners cannot tell the result from the original; at 128 kbps, cymbals and applause can start to sound slightly watery. If the file will be edited again later, keep working with the WAV and convert only the final version.
Which MP3 Bitrate Should You Choose?
- 128 kbps: the smallest files; fine for speech and podcasts.
- 192 kbps: a good balance for music; this is the default.
- 256 kbps: for music you care about, at a modest increase in size.
- 320 kbps: the highest MP3 quality and the largest files.
Convert Several Files at Once
You can add up to 20 files in one go. They are converted one after another on your device, and each one gets its own download button; Download All saves them all. The sample rate and the channels of each file are kept: nothing is resampled, and mono stays mono.