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WAV to MP3 - Online Audio Converter
Convert WAV to MP3 online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert WAV to MP3
Drop WAV audio here or click to select
WAV
MP3 (libmp3lame)
About WAV to MP3
WAV holds 16-bit PCM near 10 MB per minute, so MP3 compresses it for portable listening.
Why convert WAV to MP3?
- Smaller files with MP3 lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
WAV vs MP3
| Codec | PCM 16-bit | libmp3lame |
|---|---|---|
| Compression | uncompressed | lossy |
| Sample behavior | Full quality kept | Quality set by bitrate |
| Typical use | WAV is Microsoft's RIFF container, usually holding 16-bit PCM. | MP3 is the MPEG-1 Layer III codec, playable on virtually every device. |
When not to convert WAV to MP3
- Skip MP3 for archival masters: lossy compression discards detail, so keep the WAV original.
- Keep a master copy: repeated exports stack small losses, so archive WAV before batch MP3 shares.
Limits
Starting point: WAV - 16-bit PCM near 10 MB per minute. Files run about 10 MB per minute, so archive as FLAC. Repeated re-encoding stacks artifacts; convert from the master. Encode MP3 (libmp3lame) from WAV at 256k for music or 128k for speech, starting from the master.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.
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FAQ
How do I convert WAV to MP3?
Drop your WAV file onto this page, choose quality and codec settings, then click Convert. The result downloads as MP3 instantly. All processing runs in your browser.
What codec is used for MP3?
The default codec for MP3 is libmp3lame. You can change audio parameters in Advanced mode.
What bitrate suits WAV to MP3?
256k fits music archiving; 128k fits speech and casual listening.
Does WAV to MP3 keep tags?
ID3 tags carry over when present; check them after conversion.
How do you store my files?
We do not store any processed audio. All conversion happens entirely in your browser using FFmpeg WASM.