Convert MP4 to M4B Online — Free
Fast, free MP4 to M4B converter. No registration required.
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Come convertire
Upload your .mp4 file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .m4b file when it's ready.
Cos'è MP4?
MP4 is the most widely used video container format. It stores video, audio, subtitles, and metadata. Compatible with virtually every device and platform, from smartphones to smart TVs.
Dettagli formato
- Nome completo
- MPEG-4 Part 14
- Estensione
- .mp4
Caratteristiche principali
- Universal compatibility
- Streaming support
- Small file sizes
- Hardware-accelerated playback
Cos'è M4B?
M4B is the MPEG-4 audiobook format used by Apple iTunes and many audiobook platforms. It supports chapter markers, bookmarking, and AAC compression for efficient audiobook delivery.
Dettagli formato
- Nome completo
- MPEG-4 Audiobook
- Estensione
- .m4b
Caratteristiche principali
- Chapter support
- Bookmark resume
- iTunes compatible
- AAC compression
MP4 vs M4B
| Caratteristica | MP4 | M4B |
|---|---|---|
| Nome completo | MPEG-4 Part 14 | MPEG-4 Audiobook |
| Estensione | .mp4 | .m4b |
| Ideale per | Universal compatibility | Chapter support |