Just try it on PenguinMod: https://studio.penguinmod.com/fullscreen.html?project_url=https://files.catbox.moe/2jjmk4.pmp If you don't know what to do with this PenguinMod project, there's also the documentation to Google Docs. Does not require sign in to Google. Or try encoding/decoding here: https://scratch.mit.edu/projects/1257703592/ ...but this project you're at right now is more secure than this one.
Uses E2EE in PenguinMod Extra Extensions. Nobody helped the idea or work. MORE SECURE THAN ENCODING/DECODING!