Free online WMA to CAFF converter

Source format: WMA

WMA stands for Windows Media Audio, an audio format developed by Microsoft. It is commonly used on Windows systems, in older media libraries, and in files distributed through legacy software or devices that support Microsoft audio codecs. WMA files may be either lossy or, less commonly, lossless, and they are often chosen for compact file size and compatibility within the Windows ecosystem.

Target format: CAF

CAF means Core Audio Format, a flexible audio container developed by Apple. It is used mainly on macOS and iOS for professional audio workflows, editing, and storage of high-quality audio, including long recordings and multichannel material. CAF supports large files, high sample rates, and a wide range of audio data types, making it useful for production and archival purposes.

How to perform the conversion

The most reliable way to convert WMA to CAF is with a desktop audio tool such as FFmpeg. Because CAF is a container, the conversion usually means decoding the WMA audio and writing it into a CAF file with a compatible codec.

1. Install FFmpeg on your computer.
2. Open a terminal or command prompt.
3. Run a command such as ffmpeg -i input.wma -c:a pcm_s16le output.caf.
4. If you want a different PCM depth, you can use another compatible audio codec setting, but PCM is the safest choice for broad CAF compatibility.
5. Check the resulting output.caf file in an audio player or editor that supports CAF.

If you prefer a graphical workflow, some audio editors that support both formats can open the WMA file and export it as CAF through File → Export or File → Save As. You can also convert the file on 101convert.com for free, without installing any software.

Notes on quality and compatibility

Converting WMA to CAF does not restore audio quality lost in the original WMA compression. If the source WMA is lossy, the CAF output will preserve that decoded audio, but it will not improve it. For best results, use the highest-quality source available.

CAF support is not universal; it is strongest in Apple software and professional audio tools. Many players and editors on Windows or Linux may not open CAF files without additional support. If you need broad playback compatibility, a more common target such as WAV or FLAC may be better, but for Apple-centric editing workflows, CAF is a strong choice.