Cygnus Hex Editor is a free software that provides the fastest and easiest hex editing capabilities with a MDI interface, multi-level undo & redo, drag & drop support, and efficient search and replace features.

One of the standout features of the Cygnus Hex Editor is its blazing fast search functionality. This is coupled with the ability to easily search and replace, as well as delete and insert characters, just as you would in a word processor.
Another impressive aspect of the Cygnus Hex Editor is its ability to edit files up to available virtual memory, with support for up to 2GB. And that's just scratching the surface - there are many more features to discover and explore.
Overall, the Cygnus Hex Editor is a top-notch option for anyone looking to work with hex code quickly and easily.
Version 1.00: FREE EDITION