Free tools by Denkprozesse · 100 % in your browser – no upload
Free tool

Convert WMA to M4A

Convert your old WMA files into the modern M4A format that runs on iPhones, in iTunes and many players. By default the conversion runs in your browser.

Why this tool

Simple, private, fast

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100% in your browser

In “Local” mode your file never leaves your device. No uploads, no server – ideal for sensitive recordings.

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Local or Server

Pick “Local” for full privacy or “Server” for very large files and every format.

Instant & free

No sign-up, no queue, no watermark. Choose a file, convert, download.

FAQ

Frequently asked questions

Is quality lost going from WMA to M4A?

Both formats are lossy, so this is a transcode with possible minor loss. A high bitrate keeps the difference inaudible.

Why convert WMA to M4A?

WMA is an old Windows format that won't run in the Apple world. M4A with AAC audio plays effortlessly on iPhone, iPad and in iTunes.

Are my WMA files uploaded?

By default everything stays locally in your browser. Very large or unusual WMA files may need the optional server mode to decode them.

Does M4A work outside Apple devices?

Yes. M4A is supported by most modern phones and players, though it feels most at home in the Apple ecosystem.

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