Convert m4a to wma
Converted on your device. Files never leave this tab. Output tops out around 2 GB.
Nothing is uploaded
The converter runs inside this page. Cut your network after it loads and it still works.
No account, no daily limit
No sign-up, no daily limit, no watermark, no queue behind other people's files. Batch as many M4A files as you like.
Real WMA output
Encoded by ffmpeg, the same library the command-line tools use — not a renamed extension.
About M4A
MPEG-4 Audio
An audio-only MPEG-4 file, the format iTunes and Apple Music use. It usually holds lossy AAC and sometimes lossless ALAC. Use it for iPhones, Macs and iTunes libraries, where it plays and tags natively.
About WMA
Windows Media Audio
Microsoft's audio codec family, introduced in 1999 and stored in an ASF container, with lossy, lossless and voice variants. Convert from WMA to play old Windows Media files on phones, Macs and players that never supported it.