Free online M4R-to-CAF converter — upload a M4R file and download a CAF. Fast, private, no signup.
Drop your M4R file into the converter above — we auto-detect the real format from its bytes, convert it, and give you a CAF to download. No software to install.
Yes. Convert M4R to CAF for free right in your browser, with no account needed to get started.
Your file is transferred over an encrypted connection and anonymous uploads are temporary. You can also view and strip metadata (location, device, author) before you download.
iPhone ringtone (AAC in an MPEG-4 container). Core Audio Format — Apple's container (here written with lossless ALAC).
Convert M4R to: MP3 · WAV · FLAC · M4A · AAC · AC3 · AIFF · AU · DTS · M4B
Convert to CAF from: AAC · AC3 · AIFF · AMR · APE · AU · DFF · DSF · DTS · FLAC