Convert M4A to WMA online in seconds — free, with no sign-up. WMA is lossy and ideal for legacy Windows audio; converted to MP3 for sharing. Your files are encrypted and deleted automatically after 24 hours.
WMA
Windows Media Audio — A Microsoft audio format with limited support outside Windows.
How to convert M4A to WMA
- 1Upload your M4A file
Click “Choose a file” or drag and drop your M4A file onto the page — no sign-up or email needed.
- 2Convert to WMA
WMA is already selected as the output. Open Options to fine-tune quality if you like, then click Convert.
- 3Download your WMA file
Your WMA file is ready in seconds — click Download to save it. Files are automatically deleted after 24 hours.
M4A vs WMA
| M4A | WMA | |
|---|---|---|
| Full name | MPEG-4 Audio | Windows Media Audio |
| Type | Audio | Audio |
| Compression | Lossy | Lossy |
| Best for | Apple devices; converted to MP3 for universal playback | legacy Windows audio; converted to MP3 for sharing |
Frequently asked questions
Does converting M4A to WMA lose quality?
Both M4A and WMA use compression, so re-encoding discards a little more data. For a single conversion the change is imperceptible to the ear; just avoid repeatedly re-converting the same file.
What's the difference between M4A and WMA?
MPEG-4 Audio (M4A) is lossy and best for Apple devices; converted to MP3 for universal playback. Windows Media Audio (WMA) is lossy and best for legacy Windows audio; converted to MP3 for sharing. Convert M4A to WMA when you need a audio for legacy Windows audio.
Is the M4A to WMA converter free?
Yes — converting M4A to WMA is completely free. There's no watermark, no sign-up and no email required, and you can convert as many files as you like.
Are my M4A files private and secure?
Yes. Your uploads are encrypted in transit, processed privately, and automatically deleted within 24 hours. We never share, sell or look at your files.
Can I convert M4A to WMA on iPhone, Android, Mac or Windows?
Yes. The converter runs entirely in your browser, so it works on any device — iPhone, iPad, Android, Mac, Windows or Linux — with nothing to download or install.
How long does it take to convert M4A to WMA?
Most files convert in a few seconds. Larger files take a little longer, and your upload speed is usually the limiting factor. There's no queue and no waiting for an email.
What else can I convert M4A files to?
Besides WMA, you can convert M4A to AAC, AIFF, FLAC, MP3, OGG, OPUS and more — see the full list of M4A conversions below.
Other conversions
Last updated July 2026