Convert WAV to MP3
Convert WAV files to MP3 entirely in your browser — no upload, no account, no watermark.
Your file never leaves your device — conversion runs entirely in this browser tab.
To convert WAV to MP3, open the MP3 converter and drop your WAV file in. The conversion runs entirely inside your browser using WebAssembly, so the file is never uploaded. Also a first-generation encode from a lossless source, so quality holds up well.
What to expect from this conversion
Also a first-generation encode from a lossless source, so quality holds up well. The size reduction is dramatic: roughly ten to one at 192kbps. This is the standard final step for a finished recording.
Uncompressed PCM audio. No quality loss, but roughly ten times the size of an MP3.
Lossless · audio
The format that made digital audio portable. Lossy, universally supported, and still the safest choice for compatibility.
Lossy · audio
How to do it
- Open the MP3 converter
Go to the MP3 converter and drop your WAV file onto it, or click to browse.
- Convert
Press Convert. FFmpeg runs in your browser and shows real progress as it works.
- Download
Download the finished MP3 file. It is created in your browser and never sent anywhere.
Common questions
How do I convert WAV to MP3?
Open the MP3 converter, drop your WAV file onto it and press Convert. Everything runs in your browser — the file is not uploaded. Desktop browsers handle files up to about 200MB; mobile browsers about 40MB.
Does converting WAV to MP3 lose quality?
Not on the encoding side. MP3 does not discard data when written, so nothing further is lost — though anything the WAV source already discarded stays gone.
Is it free to convert WAV to MP3?
Yes, with no account, no watermark and no daily limit. The processing happens on your device rather than on a server, so there are no per-conversion costs to pass on.
Are my files uploaded when converting WAV to MP3?
No. FFmpeg runs as WebAssembly inside your browser tab. The file is read from your disk, processed in memory and written back out — it never reaches a server.