Convert WAV to M4A
Turn WAV files into M4A in seconds. Up to five at a time, private and free.
1 · Choose your files
Drag & drop audio or video files here, or click to browse
Up to 5 WAV files, max 200 MB each
2 · Pick the output
All processing runs on your own device with ffmpeg compiled to WebAssembly; nothing is uploaded.
3 · Collect your files
Results appear here with a player. Download them one by one or grab everything as a ZIP.
How to convert WAV to M4A
- Drop your WAV files into the box above, or click it to browse.
- M4A is already selected as the output. For lossy formats, 192 kbps is a good balance between size and quality.
- Click Convert to M4A, then download each result or grab them all as a ZIP.
About the WAV format
WAV (Waveform Audio) stores audio uncompressed as raw PCM samples, exactly as it was recorded or decoded. It is the standard for recording, editing and mastering because nothing is lost, and it plays everywhere. The price is size: a minute of CD-quality stereo takes about 10 MB.
About the M4A format
M4A is the audio-only MP4 container, almost always carrying AAC audio. It is Apple's native format (iTunes, Apple Music, iPhone ringtones) and sounds better than MP3 at the same bitrate. Every modern device plays it.
Frequently asked questions
Why convert WAV to M4A?
M4A (AAC) sounds better than MP3 at the same bitrate and is the native format of Apple devices. WAV files are huge, about 10 MB per minute, which makes them impractical to send or stream.
Does converting WAV to M4A lose quality?
M4A uses lossy compression, so a little detail is discarded to make the file smaller. At 192 kbps or higher the difference is inaudible for most listeners; choose 320 kbps for the safest result.
Which bitrate should I choose?
192 kbps is transparent for most music and the default here. Use 320 kbps to archive or for critical listening, and 128 kbps for speech, where the difference is inaudible and the file is a third smaller.
How much smaller will the M4A file be?
A lot. WAV stores far more data than M4A needs: a typical song shrinks by 80 to 90 percent at 192 kbps.
Can I convert several WAV files at once?
Yes. Add up to 5 files of up to 200 MB each, convert them in one go and download the results one by one or as a ZIP.
Are my files uploaded?
No. The conversion runs in your browser with ffmpeg compiled to WebAssembly. Your WAV files never leave your device.
Is this WAV to M4A converter free?
Yes, completely, with no sign-up and no watermark. The site is supported by ads.
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