Convert WAV to MP3

WAV files are lossless, which is why they are enormous — a few minutes of audio can run to tens of megabytes. Converting to MP3 typically cuts that by around ten times, which is what makes a file small enough to email, upload, or fit on a phone. Pick how much quality you want to keep, listen to the result before committing, and download. This page opens set to MP3 for exactly this reason.

Have a video instead? Use extract audio from video.

This tool runs entirely in your browser, so it needs JavaScript enabled. The description above stays readable either way — nothing here was ever going to be processed on a server.