mChapters is a simple, intuitively and easy-to-use chapter marker editor for MP4/MOV files. Chapter markers will make it easy for users to skip a playing-time to a specific time. It's very useful especially in long duration videos and audios.

mChapters will save chapter markers data, times and titles, as text track into files. The text track is defined by the QuickTime/MP4 specification. So you can use it in media players supported that of QuickTime/MP4. e.g. QuickTime Player, iTunes, iPhone, iPad, iPod, Apple TV and so on.

mChapters will save files without re-encoding video/audio data. That does not affect the qualities, and that makes completing the saving quick.

■ Key Features
- Adding chapter markers by specified interval, number of divisions
- Adding chapter markers by importing text file
- Exporting Chapter titles as plain text (.txt)

■ Supported Formats
- QuickTime movie (mov)
- MP4 file (mp4, m4v, m4a)
mChapters cannot open files which requires any conversion or codec components in QuickTime Player. Or nothing will be displayed.

What’s New

Version 2.1.7

・Optimized for macOS 10.14 Mojave
・Added support for dark mode in Mojave
・Added support for adding chapter markers by importing text file
・UI elements adjusted
・Fixed small bugs

Ratings and Reviews

AK ace ,

Excellent, simple and elegant

This was a great addition to my arsenal of video production tools. I have FCP-X for my main editor, but there are times when I just need to do a simple chapter iinclusion and running it through X is tedious for such a simple task. This allowed me to quickly jump through 2 hours of a dance recital, dropping chapters and titles with great precision for over 40 dances in about 15 minutes. SUPER TIME SAVER! Then it saved the file without a re-encode and VOILA! Chapter markers and titles muxed to the MP4 file effortlessly (or very nearly so). Great app!

dwn2mrz ,

Smart, perfect app

Love how easy it is to add chapters, love the ability to watch/listen at up to x3 speed… very convenient!

I only wish there was a windows version as my non-mac colleagues love the prospect of it, but have found nothing anywhere close to elegant.

computer savage ,

Waited So Long for an App Like This

I routinely deal with long form videos for work and need a quick way to add chapters for client reviewal. I hated having to go into a full-blown editor and a render process just to add some markers. This app allows you to quickly pass through your video and add text markers that show up in Quicktime, iTunes, and iPhone. Brilliant—thank you so much!


1.9 MB
OS X 10.11 or later, 64-bit processor
English, Japanese
Age Rating
Rated 4+
© 2018 Yuji MIMORI


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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