Encrypt the prompt text inside a PNG file with password. For Windows (so far).
Check the executable on the Release section, or just download here. Built with python. Compiled with auto-py-to-exe.
Apparently the executable got blocked by Google Chrome because it wasn't signed. Download this instead (extract, run the dependencies installer, and run the batch file to run the python file).
Source code coming soon, until i figured out if the encryption mechanism is really secure.
Here's the module used