WAV to M4A — No Upload Needed
Your WAV files never leave your computer. AudioUtils runs the entire conversion in your browser. No server receives your audio. No upload progress bar. Instant results.
Drop your WAV file here or click to browse
WAV (.wav) · Max 20 MB
Traditional online converters upload your file, process it on a remote server, and send it back. That's slow, insecure, and wasteful. AudioUtils eliminates the upload entirely.
The converter uses WebAssembly to run a compiled audio engine in your browser tab. It reads your file locally, converts it locally, and saves the result locally. The network is never involved.
This matters for sensitive audio. Unreleased music, legal recordings, private conversations. With AudioUtils, your files stay yours. WAV is lossless. Converting to M4A reduces file size at the cost of some audio data. Use a high bitrate to minimize loss.
Frequently Asked Questions
How much smaller is M4A compared to WAV?
About 85-90% smaller. A 50MB WAV file becomes roughly 5-7MB as M4A at 256kbps AAC.
Is M4A or MP3 better for quality?
M4A (AAC) is better. At the same bitrate, AAC delivers noticeably superior audio quality compared to MP3.
Will my WAV metadata transfer?
Basic metadata (title, artist, album) transfers when available. M4A actually has better metadata support than WAV, including album art.
Can I use M4A in video editing?
Yes. M4A is the audio-only version of the MP4 container. Most video editors accept it directly.
About WAV
Uncompressed audio format. Perfect quality with no data loss. Standard for music production and professional audio work.
About M4A
Apple's preferred audio format. Better quality than MP3 at same bitrate. Default for iTunes and Apple devices.