Drop a WAV above, pick a bitrate and download an MP3. At the default 192 kbps the MP3 is about one seventh the size of a CD-quality WAV and sounds the same to most listeners. The audio is encoded in your browser.
Why convert WAV to MP3?
WAV stores uncompressed audio — about 10 MB per minute at CD quality (44.1 kHz, 16-bit, stereo). That is too big for e-mail, messaging apps and many upload limits. MP3 plays on every device.
How it works
1. Drop the WAV file.
2. MP3 is selected; choose a bitrate from 96 to 192 kbps (320 kbps with Pro).
3. Download the MP3, encoded with LAME in your browser.
WAV vs MP3
WAV: uncompressed PCM, the format audio editors and recorders use. Perfect quality, very large (~1,411 kbps for CD audio).
MP3: lossy compression. 128 kbps ≈ 1 MB/minute, 192 kbps ≈ 1.4 MB/minute, 320 kbps ≈ 2.4 MB/minute.
Keep the WAV as your master for editing; use MP3 for listening and sharing.
Quality notes
192 kbps is transparent for most listening. For speech (podcasts, voice memos) 96–128 kbps is plenty and even smaller. MP3 cannot be converted back to the original WAV quality, so keep the WAV if you may edit again.
Common use cases
Sharing recordings from a field recorder or DAW; sending voice-overs to clients; storing podcast episodes; putting music on devices with limited space.
Frequently asked questions
Which bitrate should I choose?＋
192 kbps for music, 128 kbps for speech. 320 kbps (Pro) if the MP3 is your only copy of the music.
How much smaller is the MP3?＋
Compared with CD-quality WAV: about 11× smaller at 128 kbps and about 7× smaller at 192 kbps.
Should I delete the WAV afterwards?＋
Keep it if you might edit or re-master; MP3 is for listening.