Convertor

Audio converter

WAV to M4A

Convert a WAV file to a compact M4A (AAC) — high quality at a fraction of the size.

Runs in your browser
WAVM4A100% local · no upload

Drop your wav here, or browse

Up to 500 MB · .wav

Runs 100% in your browser — your file is never uploaded.

Guide

How to convert wav to m4a

  1. Pick your WAV file

    Drop a .wav file up to 500 MB on the converter.

  2. Encode to M4A (AAC)

    Your browser encodes the audio as AAC inside an M4A container.

  3. Download the M4A

    Save the compact, Apple-friendly file.

Format details

Input formats
WAV
Output format
M4A
Privacy
No upload · processed locally

Frequently asked questions

Why convert WAV to M4A?

WAV is uncompressed (about 10 MB per minute). M4A/AAC is a fraction of the size at quality that is transparent for listening.

Why does my browser not support this tool?

AAC encoding uses the browser’s AudioEncoder, which Firefox does not expose — this tool needs Chrome, Edge or Safari.

Do I lose quality?

AAC is lossy, but at a high bitrate the difference from the original WAV is difficult to hear. Keep the WAV if you plan to edit.

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