Convert WAV to M4A
Convert WAV files to M4A in seconds. Free, no upload, no watermark. Trim, compress or edit before you convert.
or drag & drop videos, audio or images here, or paste with Ctrl+V
MP4 · MOV · MKV · AVI · WebM · WMV · FLV · GIF · MP3 · WAV · M4A · and 40+ more
- Files never leave your device
- No sign-up, no watermark
- Free forever
How to convert WAV to M4A
- Add your WAV fileClick “Choose files” or drag & drop your WAV file onto the page.
- Check the outputM4A is pre-selected. Optionally trim, crop, compress or tweak quality in the tabs.
- Convert & downloadClick “Convert & download”. Your M4A file is created on your device and saved instantly.
WAV vs M4A
Short answer: M4A is AAC audio in an MP4 container. It sounds better than MP3 at the same size and is the default on Apple devices.
What is WAV?
WAV is uncompressed, lossless audio, ideal for editing and professional audio work.
What is M4A?
M4A is AAC audio in an MP4 container. It sounds better than MP3 at the same size and is the default on Apple devices.
Quality
M4A is lossless, so the converted file keeps all of the quality in your WAV file. It can't add back detail that WAV compression already removed, though.
| WAV | M4A | |
|---|---|---|
| Full name | Waveform Audio | MPEG-4 Audio |
| Type | audio | audio |
| Best for | Audio editing, DAWs and lossless masters | iPhone, iTunes and high-quality compressed audio |
| MIME type | audio/wav | audio/mp4 |
Last updated 2026-11-13
WAV to M4A: FAQ
Is this WAV to M4A converter free?
Yes. Converting WAV to M4A is completely free with no watermark, no sign-up and no file limits beyond what your device can handle. Optional Pro features like 4K export and AI subtitles are available if you need them, and a single 4K export can be unlocked without a subscription.
Are my WAV files uploaded to a server?
No, never. The conversion runs entirely in your web browser using FFmpeg compiled to WebAssembly. Your WAV file never leaves your computer or phone, and we never store it, which makes it private and fast.
Will I lose quality converting WAV to M4A?
M4A is lossless, so the converted file keeps all of the quality in your WAV file. It can't add back detail that WAV compression already removed, though.
How do I convert WAV to M4A on iPhone or Android?
Open this page in Safari or Chrome on your phone, tap “Choose files”, pick your WAV file and tap “Convert & download”. No app install needed.
Can I convert multiple WAV files to M4A at once?
Yes. Select several files and click “Convert all”. You can download them one by one or as a ZIP. Free users can batch-convert up to 5 files at a time; Pro removes the limit.
Can I edit the WAV before converting?
Yes: trim, cut, crop, rotate, resize, change speed, adjust colour, add text, music or subtitles, and more, all before you export to M4A.