Welcome

AtomicBrowser

A media file explorer for macOS, fully native in modern SwiftUI and AppKit

Download on the Mac App Store

AtomicBrowser screenshot
MDAT contents
The contents of MDAT atoms, normally opaque, is revealed. AtomicBrowser gathers all the stbl references, from all tracks, and synthesises the MDAT content.
Media Timeline
  • The timeline shows the track media 'chunks'.
  • The timeline is interactive; select chunks and they're revealed in the MDAT (and the STCO that defined it).
  • Use left & right arrowkeys to step through the chunks.
Media Types
Supports MPEG-4 media files (.m4v, .m4a) and QuickTime (.mov)
Validation View
Warnings or errors in the file are called out.