All Tools
[ audio bench ]
M4A to WMA - Online Audio Converter
Convert M4A to WMA online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert M4A to WMA
Drop M4A audio here or click to select
M4A
WMA (WMA v2)
About M4A to WMA
Convert M4A to WMA. M4A is the MPEG-4 audio container usually holding AAC or ALAC. WMA is Microsoft's audio codec paired with Windows Media workflows. Copy-protected store files cannot be converted; use DRM-free sources..
Why convert M4A to WMA?
- Smaller files with WMA lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
M4A vs WMA
| Codec | AAC | WMA v2 |
|---|---|---|
| Compression | lossy | lossy |
| Sample behavior | Quality set by bitrate | Quality set by bitrate |
| Typical use | M4A is the MPEG-4 audio container usually holding AAC or ALAC. | WMA is Microsoft's audio codec paired with Windows Media workflows. |
When not to convert M4A to WMA
- Skip WMA for archival masters: lossy compression discards detail, so keep the M4A original.
- Keep a master copy: repeated exports stack small losses, so archive M4A before batch WMA shares.
Limits
Starting point: M4A - M4A is the MPEG-4 audio container usually holding AAC or ALAC. Check whether the track is AAC or ALAC before picking settings. Copy-protected store files cannot be converted; use DRM-free sources. Encode WMA (WMA v2) from M4A at 256k for music or 128k for speech, starting from the master.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.
Related conversions
FAQ
How do I convert M4A to WMA?
Drop your M4A file onto this page, choose quality and codec settings, then click Convert. The result downloads as WMA instantly. All processing runs in your browser.
What codec is used for WMA?
The default codec for WMA is WMA v2. You can change audio parameters in Advanced mode.
How do you store my files?
We do not store any processed audio. All conversion happens entirely in your browser using FFmpeg WASM.