Mac hex editor.
0xED is a native OS X hex editor based on the Cocoa framework.Fast editing of large files.Unlimited file size (limited by what the actual file system supports).Small memory footprintInstant opening of files of any sizeSupports all normal text editor keyboard shortcutsHFS+ compatible.Full hex/text search/replace.Binary/text Cut/copy/paste support.Requires Mac OS X 10.6 or newer.Free of charge.PowerPC and 10.3/10.4/10.5 builds are available
Hackable text editor for programmers.
Gettext translations editor.
Advanced property list & preference editor.