Convert WAV to MP3
Turn WAV files into MP3 in seconds. Up to five at a time, private and free.
1 · Choose your files
Drag & drop audio or video files here, or click to browse
Up to 5 WAV files, max 200 MB each
2 · Pick the output
All processing runs on your own device with ffmpeg compiled to WebAssembly; nothing is uploaded.
3 · Collect your files
Results appear here with a player. Download them one by one or grab everything as a ZIP.
How to convert WAV to MP3
- Drop your WAV files into the box above, or click it to browse.
- MP3 is already selected as the output. For lossy formats, 192 kbps is a good balance between size and quality.
- Click Convert to MP3, then download each result or grab them all as a ZIP.
About the WAV format
WAV (Waveform Audio) stores audio uncompressed as raw PCM samples, exactly as it was recorded or decoded. It is the standard for recording, editing and mastering because nothing is lost, and it plays everywhere. The price is size: a minute of CD-quality stereo takes about 10 MB.
About the MP3 format
MP3 (MPEG-1 Audio Layer III) is the most widely supported audio format there is: every phone, car stereo, browser and player reads it. It is lossy, storing music at a fraction of the size of the original by removing detail the ear is least likely to notice. At 192 kbps or more it is transparent for most listeners.
Frequently asked questions
Why convert WAV to MP3?
MP3 plays on every device and player ever made, and keeps files small enough to send and store easily. WAV files are huge, about 10 MB per minute, which makes them impractical to send or stream.
Does converting WAV to MP3 lose quality?
MP3 uses lossy compression, so a little detail is discarded to make the file smaller. At 192 kbps or higher the difference is inaudible for most listeners; choose 320 kbps for the safest result.
Which bitrate should I choose?
192 kbps is transparent for most music and the default here. Use 320 kbps to archive or for critical listening, and 128 kbps for speech, where the difference is inaudible and the file is a third smaller.
How much smaller will the MP3 file be?
A lot. WAV stores far more data than MP3 needs: a typical song shrinks by 80 to 90 percent at 192 kbps.
Can I convert several WAV files at once?
Yes. Add up to 5 files of up to 200 MB each, convert them in one go and download the results one by one or as a ZIP.
Are my files uploaded?
No. The conversion runs in your browser with ffmpeg compiled to WebAssembly. Your WAV files never leave your device.
Is this WAV to MP3 converter free?
Yes, completely, with no sign-up and no watermark. The site is supported by ads.
More WAV conversions
More ways to get MP3
More free tools: Converter · Trimmer · Merger · Compressor · Volume · Speed · Silence