File Convert

Convert M4B to M4R

Free online M4B-to-M4R converter — upload a M4B file and download a M4R. Fast, private, no signup.

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M4B vs M4R

M4B

MPEG-4 audiobook (AAC, with chapter support).

About M4B ↗

M4R

iPhone ringtone (AAC in an MPEG-4 container).

About M4R ↗

M4B to M4R: frequently asked questions

How do I convert M4B to M4R?

Drop your M4B file into the converter above — we auto-detect the real format from its bytes, convert it, and give you a M4R to download. No software to install.

Is the M4B to M4R converter free?

Yes. Convert M4B to M4R for free right in your browser, with no account needed to get started.

Is it safe and private?

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.

What's the difference between M4B and M4R?

MPEG-4 audiobook (AAC, with chapter support). iPhone ringtone (AAC in an MPEG-4 container).

Related conversions

Convert M4B to: MP3 · WAV · FLAC · M4A · AAC · AC3 · AIFF · OGG · OPUS · WV

Convert to M4R from: AAC · AC3 · AIFF · AMR · APE · FLAC · M4A · MP3 · OGG · OPUS

Browse all supported formats →