This is the fastest and easiest hex editor available anywhere! Features include tabbed MDI interface, multi-level undo & redo, extensive drag & drop support, Data Inspector allows you to view and edit data using natural data types and structures, support for powerful user-writable plug-ins, blazing fast and flexible search, search and replace, file compare, delete and insert characters as easily as you can in a word processor, edit files up to available virtual memory (up to 2GB), import/export operations, checksum calculations, and many more powerful features.
This software is a shareware. You will be able to download and test Cygnus Hex Editor during a certain period of time, then, if it does what you need, you will have to acquire the full version from Cygnus Hex Editor publisher. The Cygnus Hex Editor 2.50 free trial version contains an installer and an uninstaller, and has a size of 564 Kilobytes.
For additional information and support request, please contact directly Cygnus Hex Editor publisher.

Cygnus Hex Editor Screenshot