WAV → MP3
WAV files are lossless and enormous. Turn one into a compact MP3 in seconds, without uploading a single byte.
FreeNo sign-upNo upload — runs on your device
Drop a WAV file here, or click to browse
Accepted: .wav · up to 2 GB
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Before you start
Drag in a .wav file from a DAW export, a Zoom recorder, a hardware synth or a CD rip.
192 kbps is a safe default for music. 320 kbps if the WAV is a master you want to keep close to the original; 128 kbps for spoken word.
Press Convert. The PCM samples are encoded to MP3 locally and the file downloads automatically when it is ready.
A WAV file stores raw PCM samples: every fraction of a second of audio is written out uncompressed. At CD quality that is 44,100 samples per second, 16 bits each, across two channels — about 10 MB per minute. A three-minute song lands around 30 MB, and a 48 kHz 24-bit studio export is roughly half again as large.
Expect roughly a 90 percent reduction. A 30 MB WAV becomes a 4 MB MP3 at 192 kbps, which is the difference between a file that will not attach to an email and one that will, or between an album that overflows a phone and one that fits comfortably. The trade-off is that MP3 discards some detail, so keep the original WAV as your archive copy and treat the MP3 as the version you share and play.
The MP3 algorithm uses psychoacoustic models to discard sounds that the human ear cannot detect — such as very faint frequencies masked by loud adjacent ones, or signals near the extremes of human hearing (above 18-20 kHz). At 320 kbps (CBR) or 192 kbps, the perceived sound quality remains indistinguishable from the studio WAV on standard consumer headphones and automotive speakers.
For music releases and master previews, 320 kbps provides the closest fidelity to uncompressed audio. For spoken-word podcasts, webinars, and audiobooks, 128 kbps or 192 kbps is the sweet spot, yielding tiny files without degrading vocal warmth or clarity.
If the file is going into a DAW for further editing, mastering or mixing, keep it in WAV — every lossy generation compounds. The same applies to audio you plan to re-encode several times, or to sample libraries where clarity matters. MP3 is for delivery and playback, not for further processing.
Every tool below runs in your browser with the same no-upload guarantee.