WAV to MP3 Converter

Convert WAV files to MP3 online, for free, with nothing to install.

To convert WAV to MP3, select or drop your .wav file above, check that MP3 is chosen as the output, and click Convert. This conversion runs on our server, and your files are deleted 72 hours later.

What is a WAV file?

WAV – WAV audio. WAV is uncompressed audio from Microsoft and IBM: every sample is kept, so files are large (about 10 MB a minute) and editing programs love them. Converting makes a new file: the sound is decoded and written again, so converting from a lossy format never brings back what was lost.

WAV Converter →

What is an MP3 file?

MP3 – MP3 audio. MP3 is the most widely played audio format: music compressed to about a tenth of its size, which every phone, player and car stereo plays. Converting makes a new file: the sound is decoded and written again, so converting from a lossy format never brings back what was lost.

MP3 Converter →

How to convert WAV to MP3

  1. Click Select File, or drop your .wav files anywhere on this page. You can add several at once.
  2. Check that MP3 is chosen as the output format. On this page it is picked for you.
  3. Click Convert. When a file has to go to our server, the button says Upload and convert instead.
  4. Click Download next to each file when it's done.

WAV vs MP3: how they compare

WAVMP3
LayoutA stream of soundA stream of sound
EditableIn audio editorsIn audio editors
Created byMicrosoft and IBM, 1991Fraunhofer, 1993
Best forAudio editing and recordingMusic on any device

Good to know

  • The sound is decoded and written as an MP3 file at a fixed quality (variable bit rate, about 190 kbit/s).
  • Tags such as title and artist are kept where the new format has room for them. Only the first audio track is converted; pictures and video are left out.

Frequently asked questions

Is converting WAV to MP3 free?

Yes. Everyone gets 25 free credits a day, with no account needed. Conversions on our server use one credit per started minute of work, so most cost a single credit. Credits reset at midnight UTC.

Are my WAV files uploaded anywhere?

This conversion runs on our server, because converting audio needs ffmpeg, which does not run in a browser. Your file is sent over an encrypted connection, and both it and the result are deleted 72 hours after the conversion. The server has no internet access while it works on your file.

How large can the WAV file be?

Up to 1 GB per file. This conversion runs on our server, which accepts files up to that size.

Will the MP3 look the same as the WAV?

It sounds very close: the sound is encoded again as MP3 at a fixed quality, so a little detail is lost, and tags such as title and artist are kept where MP3 has room for them.

Can I convert several WAV files at once?

Yes. Add as many files as you like; they are converted one after another, and each one gets its own Download button.

How long does converting WAV to MP3 take?

In our tests a one-hour WAV recording became an M4A file in about 46 seconds. A song of a few minutes takes a few seconds, and most conversions cost a single credit.

Convert WAV to other formats

Convert other files to MP3

All audio formats

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