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M4R is a special type of M4A audio file used for ringtones on Apple devices. Created using the AAC codec, it delivers high-quality audio in a small size. M4R files are typically created in iTunes and synced to iPhones as custom ringtones.
AAC stands for Advanced Audio Coding and is a lossy audio format known for its high sound quality at lower bitrates. It’s commonly used by streaming platforms and devices like iTunes, YouTube, and iPhones. Compared to MP3, AAC offers better audio performance at similar file sizes.
Convert your .m4r files to .aac right in your browser — no downloads, no installs. Everything happens securely in the cloud.
We never store your files permanently. Only you can access them, and they’re automatically deleted from our servers within 2 hours.
Turn your M4R files into AAC in just a couple of clicks. No registration, no limits — and it’s 100% free.