WAV to M4A Converter
Convert WAV files to M4A in seconds, right in your browser. Drop in one file or a whole folder, pick your quality settings and download - nothing is uploaded to a server.
Drop WAV files here
MP3, WAV, FLAC, M4A, OGG, OPUS, AAC, AIFF, WMA, AMR, MP4, MOV & more · Processed on your device - nothing is uploaded
How to convert WAV to M4A
- Click "Choose files" or drag your WAV files onto the page.
- Make sure "M4A" is selected as the output format (192 kbps is a good default).
- Optionally click Edit to trim, adjust volume or add effects.
- Click Convert, then Download your M4A files.
Why convert WAV to M4A?
M4A files are typically 5-10x smaller than WAV, making them ideal for phones, sharing and streaming.
M4A is best for iPhone, iTunes/Apple Music, YouTube uploads and efficient music storage. Excellent on Apple devices, Android, Windows, browsers and most modern players.
Will I lose quality?
M4A is a lossy format, so some inaudible detail is removed to save space. At 192 kbps or higher most listeners cannot tell the difference from the original WAV.
WAV vs M4A
| WAV | M4A | |
|---|---|---|
| Full name | Waveform Audio File Format | MPEG-4 Audio (AAC) |
| Type | uncompressed | lossy |
| Best for | audio editing, DAWs, mastering, broadcast and archiving | iPhone, iTunes/Apple Music, YouTube uploads and efficient music storage |
| Typical size | ~10 MB at 16-bit / 44.1 kHz per minute | ~1.4 MB at 192 kbps per minute |
| Compatibility | Supported by every audio editor, DAW and operating system. | Excellent on Apple devices, Android, Windows, browsers and most modern players. |
| Developed by | Microsoft & IBM (1991) | MPEG / Apple (2001) |
WAV to M4A: questions
How do I convert WAV to M4A?
Open this page, add your WAV file, make sure M4A is selected as the output format and click Convert. Your M4A file is ready to download in seconds.
Will converting WAV to M4A lose quality?
M4A is a lossy format, so some inaudible detail is removed to save space. At 192 kbps or higher most listeners cannot tell the difference from the original WAV.
Is this WAV to M4A converter free and safe?
Yes. It's free with no watermark or sign-up. Files are processed locally in your browser, so your audio is never uploaded or stored on our servers.
Can I convert many WAV files to M4A at once?
Yes - add up to 5 files at a time on the free plan (unlimited with Pro), convert them all with one click and download them as a ZIP.
What is the difference between WAV and M4A?
WAV (Waveform Audio File Format) is a uncompressed format, uncompressed PCM audio with perfect quality. WAV files are large but every sample is preserved exactly, making them the standard for recording and editing. M4A (MPEG-4 Audio (AAC)) is a compressed (lossy) format: aAC audio in an MPEG-4 container. Better quality than MP3 at the same bitrate and the native format of Apple Music and iTunes.
Does it work on Mac, Windows, iPhone and Android?
Yes. The WAV to M4A converter runs in any modern browser - Chrome, Safari, Edge or Firefox - on desktop and mobile. No software to install.