How to use the CAF to MP3 converter
- Drop your CAF files onto the box above, or click to choose them.
- Conversion to MP3 starts automatically, right on your device.
- Download each file, or all of them as a ZIP.
What are CAF and MP3 files?
CAF · Apple Core Audio Format
CAF is an Apple audio container used for iPhone voice messages, GarageBand and Logic. Outside Apple's ecosystem almost nothing can play it.
MP3 · MPEG-1 Audio Layer III
MP3 is the most compatible audio format in the world. It plays on virtually every phone, car stereo, browser and media player.
Common questions about the CAF to MP3 converter
What is a CAF file from my iPhone?
Audio messages saved from iMessage and some recordings from GarageBand are stored as .caf (Core Audio Format). Converting to MP3 lets you play them on Windows, Android or any media player.
Are my files uploaded to a server?
No. uqln runs the conversion inside your browser using JavaScript and WebAssembly. Your files never leave your device, which also means there's no upload wait and no size limit beyond your device's memory.
Is it really free?
Yes. There's no account, no watermark and no daily limit. Because the work happens on your device, it costs us almost nothing to run.
Can I convert many CAF files at once?
Yes. Drop as many files as you like. They're converted one after another, and you can download them individually or all together as a ZIP.