WAV to MP3

WAV to MP3 Converter — Convert WAV Files to Real MP3 Online

Shrink a WAV recording down to a proper MP3, right in your browser. Choose your file, pick a bitrate, and download a real, playable MP3 — no software and no uploading.

How to Convert WAV to MP3

Click the box to choose a WAV file, or drag one onto it. The tool shows the file's name, length, sample rate, and number of channels, and gives you a player to check it's the right one. Choose a bitrate — 128 kbps for a smaller file, 192 kbps as a balance, or 320 kbps for the best quality — then click Convert & Download MP3. The result downloads with the same name as your original and an .mp3 ending. The first conversion takes a moment longer while the encoder loads.

How the Conversion Works

This tool does genuine MP3 encoding using lamejs, an open-source encoder, loaded from a public library service the first time you use it — so it needs an internet connection for that one step, even though your audio file itself is never uploaded. A higher bitrate keeps more of the original sound but makes a bigger file; 192 kbps is a sensible general-purpose choice, and 320 kbps is close to indistinguishable from the original for most listeners. WAV files can be large, so converting a long recording can take a little time and use a fair amount of memory, since your browser decodes the whole file before encoding it.

Good Uses for This Tool

Shrinking WAV recordings for email or messaging, preparing audio for the web where MP3 is more widely supported, saving space on a device, and converting recordings from an editor or a microphone into a shareable format.

Is It Actually Private?

Yes. Your audio is decoded and encoded entirely in your browser — the file is never uploaded to a server or stored.