WAV to M4A converter
Turn WAV files into M4A in seconds, inside this tab. Nothing is uploaded.
- Runs on your device
- No upload
- No sign-up
- Free
Drop WAV files here (any other format works too)
Stays on this device: nothing is uploaded. You can also drag a file here or paste it.
M4A: Apple devices, better quality than MP3 at the same size.
How to convert WAV to M4A
- Choose your .wav files or drop them on the box above. You can add several.
- M4A is already selected. Leave the bitrate at 192 kbps or change it.
- Conversion starts straight away. Press Download next to each finished file, or Download all.
WAV vs M4A
| WAV | M4A | |
|---|---|---|
| Full name | Waveform Audio File Format | MPEG-4 Audio |
| Type | lossless | lossy |
| Codec | Uncompressed PCM | AAC in an MP4 container |
| Size | 10.1 MB at 16-bit / 44.1 kHz stereo | about 1.4 MB at 192 kbps |
| Plays on | Every desktop OS, most phones and all audio software | iPhone, Mac, Android, Windows 10+, modern browsers |
WAV. WAV stores raw PCM samples with no compression at all. What you save is exactly what the editor sees, which is why studios and editors use it.
M4A. M4A is an MP4 file with only an audio track, usually AAC. It is what iPhone Voice Memos, Apple Music downloads and many screen recorders produce.
What happens to quality
WAV is lossless and M4A is lossy, so the conversion discards some detail. At the default bitrate most listeners can’t hear the difference, and the file becomes far smaller. Hear the difference between lossless and MP3 yourself.
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Questions people ask
How do I convert WAV to M4A without uploading?
Choose or drop your .wav file above. AudioKit converts it to M4A inside your browser with ffmpeg.wasm and gives you a download. The file is never sent to a server, and you can convert several at once.
Will I lose quality converting WAV to M4A?
WAV is lossless and M4A is lossy, so the conversion discards some detail. At the default bitrate most listeners can’t hear the difference, and the file becomes far smaller.
What bitrate should I choose for M4A?
192 kbps is a good default. Your WAV is lossless, so a high bitrate like 256–320 kbps preserves the most. For voice recordings, 96–128 kbps is plenty.
Where does WAV play and where does M4A?
WAV: Every desktop OS, most phones and all audio software. M4A: iPhone, Mac, Android, Windows 10+, modern browsers.
Is this WAV to M4A converter safe?
It’s about as private as a converter can be: nothing is uploaded, there is no account and no installer. The page needs a modern browser with WebAssembly (any current Chrome, Edge, Firefox or Safari).