How to do it, step by step
- Select one or more MP3 files.
- If you like, adjust the sample rate (44.1 kHz is the CD one) and the channels.
- Click Convert all.
- Listen to the result in the player itself and download the WAV.
When this is useful
Edit in programs that ask for WAV
Some audio editors and DAWs work better with WAV, which does not need to be decoded on every use.
Old or professional equipment
Mixers, players and sound systems that only read WAV.
Deliver audio without new compression
WAV adds no compression losses from then on.
Tips for a good result
- Use 44.1 kHz for music and 48 kHz for video audio.
- If you want just a clip, turn on Trim clip and enter start and end as hh:mm:ss.
- Keep the original MP3: the WAV takes up much more space.
What this tool does not do
- WAV does not improve the sound: the MP3 already lost details in compression, and the conversion does not recover them.
- The file gets much bigger: about 10 MB per minute in stereo at 44.1 kHz.
- The generated WAV is 16-bit; there is no 24-bit option.
- The new file carries the “WebFaz.com” credit in the metadata (comment and artist).
Frequently asked questions
- Does the WAV have better quality than the MP3?
- No. It just stops losing quality in new conversions; what the MP3 already discarded does not come back.
- Why did the file get so big?
- WAV stores the audio uncompressed. To reduce the size afterwards, convert to MP3 or FLAC.
- Is the audio sent to any server?
- No. Everything is processed in your browser.
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Text written by Marcelo Amantino · updated October 18, 2026 · who we are