Open Source for Mac OS X

Gnome Subtitles is a subtitle editor for the GNOME desktop. The project supports the most common subtitle formats and allows for subtitle editing, conversion and synchronization.

Subtitle formats:
· Advanced Sub Station Alpha
· MicroDVD
· MPlayer
· MPlayer 2
· MPSub
· SubRip
· Sub Station Alpha
· SubViewer 1.0
· SubViewer 2.0

User Interface:
· WYSIWYG - What You See Is What You Get
· Subtitles displayed similar to the end result
· Bold, italic and underline styles
· Edit subtitle headers
· Find and Replace, including regular expressions
· Multi-level undo/redo