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CAF to WMA converter

Convert CAF to WMA in your browser. No upload and no account: the file never leaves your device, so the only size limit is your device’s memory.

I want WMA
Advanced 4
sec

Leave both at 0 for the whole file.

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Channels

Bytes of your files sent anywhere: 0 B

Related conversions

Other ways to convert CAF

Convert other formats to WMA

Read more about the CAF format and the WMA format, or see every audio tool and all audio conversions.

Should you convert CAF to WMA?

A lossless move: CAF and WMA both keep every sample, so the sound is identical and you can convert back at any time.

CAF is Apple’s professional audio container; WMA is the Windows Media audio format from the Windows XP era. Choose WMA only for an old Windows device; convert your WMA rips to MP3 or M4A to play them anywhere.

CAF and WMA compared
Property CAF WMA
Compression Depends on the codec inside Lossy
Typical quality PCM, AAC or ALAC 64–192 kbps
Support Mainly an Apple format A legacy format
Best for Audio inside Apple apps and iOS development Old Windows software and devices that expect it
Introduced 2005 1999

How to convert CAF to WMA

  1. 01

    Add your CAF

    Drop your CAF file onto the box, or click to choose it. It is read from your disk and stays there.

  2. 02

    Check the settings

    The output is already set to WMA. Change the bitrate if you want to; the defaults suit most files.

  3. 03

    Save the WMA

    Press convert and save the WMA. Several files come back together as a ZIP.

What changes when CAF becomes WMA

Identical sound

Both formats are lossless, so the audio isn’t changed at all. Only the file size and which apps open it differ.

Who needs WMA

Choose WMA only for an old Windows device; convert your WMA rips to MP3 or M4A to play them anywhere.

A one-time engine download

CAF is decoded by FFmpeg compiled to WebAssembly, a 31 MB download the first time. After that it is cached, and the conversion never leaves your device.

Expect a much smaller file

CAF: Depends on the codec inside. WMA: Similar to MP3. Shrinking the file is often the main reason to make this conversion.

This page is put together from our notes on each format, choosing only what is true of CAF and WMA, so every pairing states the same facts the same way. How these pages are made.

Why it doesn’t upload

Recordings are often private: interviews, voice notes, unreleased music. Your browser can decode and encode audio itself, so there is no reason to send it anywhere.

How to check for yourself

Worth knowing

  • About the CAF. A CAF can hold uncompressed PCM, AAC or Apple Lossless, so two CAF files of the same length can differ tenfold in size.
  • About the WMA. WMA files bought from old online stores are often DRM-protected; no converter can open those.
  • MP3, WAV, M4A, OGG, Opus and FLAC are converted by your browser directly. WMA, AMR, APE, AC3 and the other specialist formats use the FFmpeg engine, a one-time 31 MB download.

Questions

Does converting CAF to WMA lose quality?

WMA is lossy, so a little is discarded, but at the default bitrate the difference is inaudible for nearly everyone.

Will a WMA play in my car or on my phone?

WMA a legacy format: Windows and VLC; not iPhones, Macs, most Android apps or browsers.

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