Convert WAV to MP3
Drop a WAV file and get a compressed MP3 back — ready to share, stream, or play on any device. The first time you use this tool the audio engine downloads once (~24 MB); after that the browser uses its cached copy. Your file never leaves your device.
About WAV to MP3
WAV stores raw uncompressed audio (linear PCM), which is why WAV files are large — a three-minute stereo WAV at CD quality is around 30 MB. MP3 compresses audio by discarding subtle detail the ear is least likely to notice, shrinking the same track to 3–5 MB at 192 kbps. Converting WAV to MP3 encodes the raw samples into a compressed MP3 stream; the process is lossy, meaning some fine detail is permanently removed, but the result is far smaller and plays on virtually any device or platform.
Is it private?
Yes. The converter is WebAssembly and browser APIs running on your own machine. Nothing is uploaded, stored, or seen by us — there is no server to send files to.
Frequently asked questions
- Why is my MP3 so much smaller than the WAV?
- WAV stores raw uncompressed audio, so the files are large. MP3 compresses the track by discarding subtle detail the ear is least likely to notice, shrinking a three-minute song from around 30 MB to roughly 3 to 5 MB at 192 kbps.
- Is converting WAV to MP3 lossy?
- Yes. The process permanently removes some fine detail to make the file smaller. The result is far more compact and plays on virtually any device or platform.
- Are my files uploaded to a server?
- No. The conversion runs on your device using WebAssembly and browser APIs. Your file is never sent anywhere. The first time you use the tool the audio engine downloads once (about 24 MB); after that the browser uses its cached copy.
- Is it free, and do I need an account?
- It is free with no watermarks, no daily caps, and no sign-up. Drop a file, convert it, and download the result.