CAF to WMA Converter

Convert CAF (Apple Core Audio Format) files to WMA online, for free, with nothing to install.

To convert CAF to WMA, select or drop your .caf file above, check that WMA is chosen as the output, and click Convert. This conversion runs on our server, and your files are deleted 72 hours later.

What is a CAF file?

CAF – Apple Core Audio Format. CAF (Core Audio Format) is Apple's audio container: it holds any audio codec and files over 4 GB, and Apple's system sounds use it. Converting makes a new file: the sound is decoded and written again, so converting from a lossy format never brings back what was lost.

CAF Converter →

What is a WMA file?

WMA – Windows Media Audio. WMA is Microsoft's audio format, once the default of Windows Media Player and many portable players. Converting makes a new file: the sound is decoded and written again, so converting from a lossy format never brings back what was lost.

WMA Converter →

How to convert CAF to WMA

  1. Click Select File, or drop your .caf files anywhere on this page. You can add several at once.
  2. Check that WMA is chosen as the output format. On this page it is picked for you.
  3. Click Convert. When a file has to go to our server, the button says Upload and convert instead.
  4. Click Download next to each file when it's done.

CAF vs WMA: how they compare

CAFWMA
LayoutA stream of soundA stream of sound
EditableIn audio editorsIn audio editors
Created byApple, 2005Microsoft, 1999
Best forMac and iOS audio workOld Windows and portable players

Good to know

  • The sound is decoded and written as a WMA file at a fixed quality (192 kbit/s).
  • Tags such as title and artist are kept where the new format has room for them. Only the first audio track is converted; pictures and video are left out.

Frequently asked questions

Is converting CAF to WMA free?

Yes. Everyone gets 25 free credits a day, with no account needed. Conversions on our server use one credit per started minute of work, so most cost a single credit. Credits reset at midnight UTC.

Are my CAF files uploaded anywhere?

This conversion runs on our server, because converting audio needs ffmpeg, which does not run in a browser. Your file is sent over an encrypted connection, and both it and the result are deleted 72 hours after the conversion. The server has no internet access while it works on your file.

How large can the CAF file be?

Up to 1 GB per file. This conversion runs on our server, which accepts files up to that size.

Will the WMA look the same as the CAF?

It sounds very close: the sound is encoded again as WMA at a fixed quality, so a little detail is lost, and tags such as title and artist are kept where WMA has room for them.

Can I convert several CAF files at once?

Yes. Add as many files as you like; they are converted one after another, and each one gets its own Download button.

How long does converting CAF to WMA take?

In our tests a one-hour WAV recording became an M4A file in about 46 seconds. A song of a few minutes takes a few seconds, and most conversions cost a single credit.

Convert CAF to other formats

Convert other files to WMA

All audio formats

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