CAF to M4A converter
Convert CAF to M4A in seconds, free and unlimited. No upload, no sign-up, no watermark: your audio never leaves your device.
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Quick answer: To convert CAF to M4A, add the CAF file to the iHateFiles CAF to M4A converter and press Convert. The conversion runs in your browser, so the file is never uploaded, and it is free with no sign-up, watermark or size limit. CAF is a format most software has stopped opening. M4A is not.
Should you convert CAF to M4A?
Yes. Very little current software opens CAF, so converting it is the way to keep listening to it. Pick a generous bitrate.
What is inside the CAF decides the loss
A CAF can hold PCM, ALAC or AAC. If it holds a lossless one, converting to M4A is the first round of compression. If it holds a lossy one, this is a second generation, so be generous with the bitrate.
Where the M4A will play
M4A plays on Apple devices, Android, browsers and most modern players.
CAF and M4A side by side
| CAF | M4A | |
|---|---|---|
| Inside the file | PCM, ALAC or AAC | AAC |
| Compression | Depends on the codec inside | Lossy |
| Carries sound | Yes | Yes |
| One minute of stereo | anything from 1 to 10 MB | 1 to 1.9 MB |
| Plays on | Needs converting first | Apple devices, Android, browsers and most modern players |
| Here | Read only | Read and write |
What usually goes wrong
About the CAF. A CAF can contain compressed audio, so converting one to WAV does not necessarily make it lossless: that depends on what was inside.
About the M4A. M4A, M4B, M4R and AAC are largely the same thing with different extensions. Renaming usually works, though it is not something to rely on.
How to convert CAF to M4A
- Add your CAF file. It is read from your disk and stays there.
- Check the settings. The output format is already set to M4A.
- Press convert and the M4A file is saved back to your device.
Questions
How do I convert CAF to M4A?
Open this page, add your CAF file, and press convert. The file is decoded and re-encoded by your own browser and saved back to your device. Nothing is uploaded.
Is this CAF to M4A converter free?
Yes, completely. There is no account, no sign-in, no watermark and no daily limit, because there is no server doing the work. Your own device does it.
Are my files uploaded anywhere?
No. There is no upload endpoint. The conversion runs inside this browser tab, so your file never leaves your device. You can open your browser's network panel and watch: nothing carrying your file is sent.
Is there a file size limit?
No fixed limit. Because the work happens on your machine there is no server quota. The only ceiling is your own device's memory, which for video means very large files may be slow.
Will converting to M4A lose quality?
M4A is a lossy format, so some detail is discarded. The quality control on this page decides how much. The default is set high enough that most people cannot see the difference.
Can I convert several CAF files at once?
Yes. Add as many as you like and they are converted one after another, then offered as a single ZIP.