To download and install the (x64) systems, you often need to use manual installation methods since the original 32-bit version found in some older Plugin Managers is not compatible with x64 builds. Download Links for 64-Bit Hex Editor
For newer versions of Notepad++ (v7.6+), you may find it directly in the built-in manager:
Move the HexEditor.dll file from your downloaded ZIP into that new HexEditor folder. notepad++ hex editor plugin 64 bit download
Close and reopen the application. You should now see Hex-Editor listed under the Plugins menu. Installing via Plugins Admin (If Available)
The most widely recommended 64-bit port of HexEditor is hosted by user chcg . To download and install the (x64) systems, you
If the plugin does not appear in your menu, follow these steps to install it manually:
Obtain the HexEditor_x64.zip from one of the GitHub links above. You should now see Hex-Editor listed under the Plugins menu
Another unofficial update specifically for 64-bit support. Manual Installation Guide (64-Bit)