Audiobook chapters / Album tracks

Split.Cleanly.

Audiobooks by chapter. Albums by track. Choose the cut points, review the files, and export. Your original audio stays untouched.

Made for fnOS & Linux Docker

One source fileSample audiobook.m4b

M4B

Ready when you are.

Interactive illustration · no real files are processed

Originals stay read-only

Processed on your device

Results go into a new folder

Two kinds of audio

Chapters for books. Tracks for albums.

Read chapters from M4B and M4A audiobooks. No embedded chapters? Set a segment length, then adjust the cut points yourself.

Open the CUE sheet alongside a whole-track album. Review track names and positions, then save each song as its own file.

See what you will export

See chapter names and times together. Audition a cut point, adjust the range, and review the output list before writing a single file.

From one file to a tidy folder

01
Choose your files
Pick an M4B or a CUE sheet, then choose where the separate files will go.
02
Check the cut points
Review names and timing. Audition starting points and adjust the chapters or tracks you want.
03
Preview and export
Choose an output format, confirm the file list, and keep the results in a new folder.

Choose your output

Copy an AAC stream to M4A, or encode in the format you need.

M4AMP3FLACWAV

Your device. Your audio.

A native fnOS app or Linux Docker. Media is processed on your device, source files stay untouched, and you choose where the results go.

System folder picker and NAS account sign-in.

Explicit folder mounts and administrator sign-in.