Convert WMA to M4A
WMA is great for older Windows PCs and legacy media players, but M4A is the better choice for high-quality music and voice recordings for Apple and Android devices. Convert WMA to M4A in seconds, right in your browser.
- No upload — 100% private
- Fast, lossless when possible
- Free & unlimited
- Works on iPhone & Android
Keep this tab open — the conversion runs on your device, nothing is uploaded.
Add more files above to keep converting.
How to convert WMA to M4A
- 1
Tap Choose files and select one or more WMA files (or drag them in).
- 2
Check that M4A is selected. Use Advanced options for bitrate, channels or trimming.
- 3
Press Convert. Everything happens on your device — no upload, no waiting in a queue.
- 4
Your M4A downloads automatically. Converting several files? Grab them all as a ZIP.
WMA vs M4A
Both formats are lossy, so the audio is re-encoded once. Pick High quality to keep it as close to the original as possible, or Small for the smallest file.
| WMA | M4A | |
|---|---|---|
| Full name | Windows Media Audio | MPEG-4 Audio (AAC) |
| Type | Audio | Audio |
| Compression | Lossy | Lossy |
| Developed by | Microsoft | Apple / MPEG |
| Introduced | 1999 | 2001 |
| Plays on iPhone | ✕ No | ✓ Yes |
| Plays on Android | ◐ Partly / with an app | ✓ Yes |
| Plays on Windows | ✓ Yes | ✓ Yes |
| Plays on Mac | ✕ No | ✓ Yes |
About WMA and M4A
WMA: WMA is Microsoft's audio format, common on older Windows PCs, MP3 players and CD rips made with Windows Media Player.
M4A: M4A is an MPEG-4 container holding AAC audio. It sounds better than MP3 at the same size and is the default format for iPhone voice memos, Apple Music downloads and many Android recorders.
Frequently asked questions
How do I convert WMA to M4A on my phone?
Will converting WMA to M4A reduce quality?
Is this WMA to M4A converter free?
Are my files uploaded to a server?
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