BitEdit9

BitEdit9 is a Windows app that permits users to examine files of any type directly via hexadecimal display, as well as to change code as easily as working with a common word processor like Notepad.
The installation procedure does not take a long time to finish. Those who want to bypass the setup operation and run the app directly from a pen drive may resort to BitEdit9 Portable, its portable counterpart.
BitEdit9's interface is made from a normal window with a fairly intuitive structure, where you can open a file using the regular browser, since the drag-and-drop method is unsupported.
The file content's hex translation is immediately shown in the main frame, enabling you to jump to any offset to modify hex values. It is possible to make a selection and copy it to the Clipboard or replace it with something else, use a search function when dealing with large data amounts, as well as switch to decimal, octal or binary display and edit code.
The app can be integrated into the Explorer context menu for easy access. It supports multiple UI languages, and it is capable of opening the hex code of drives. Changes can be overwritten to the existing files or saved to new ones (the latter is recommended, as a backup measure).
We have not come across any issues in our tests, since the tool did not hang, crash or pop up error messages. It executes a command swiftly and uses low CPU and memory in the meantime.
In conclusion, if you're looking for a straightforward hexadecimal editor with bonus support for decimal, octal and binary display mode, then BitEdit9 gets the job done. It bundles the necessary and suffice features for editing code in no time.