File Convert

Convert 3GP to M4B

Free online 3GP-to-M4B converter — upload a 3GP file and download a M4B. Fast, private, no signup.

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3GP vs M4B

3GP

3GPP mobile video container.

About 3GP ↗

M4B

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

About M4B ↗

3GP to M4B: frequently asked questions

How do I convert 3GP to M4B?

Drop your 3GP file into the converter above — we auto-detect the real format from its bytes, convert it, and give you a M4B to download. No software to install.

Is the 3GP to M4B converter free?

Yes. Convert 3GP to M4B 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 3GP and M4B?

3GPP mobile video container. MPEG-4 audiobook (AAC, with chapter support).

Related conversions

Convert 3GP to: MP4 · MOV · MKV · WEBM · AVI · FLV · MPEG · OGV · TS · WMV

Convert to M4B from: AAC · AC3 · AIFF · AMR · APE · FLAC · M4A · M4R · MP3 · OGG

Browse all supported formats →