HexTemplate gives you a convenient way to view binary files with a specific structure. HexTemplate includes a visual binary template editor. Unlike many similar programs, the HexTemplate binary template editor doesn't require any special skills or knowledge of programming and script languages. It allows you to create the binary template you need easily using the mouse and shortcut menus. The binary template you're editing is shown as a tree to make it easier to understand the template structure.
Tools and Utilities
Product page: here