Even if the user isn't logged in, the app saves the last 10 versions to the browser's local cache so they survive a tab crash.
A list in the sidebar (e.g., "Today, 8:41 AM") showing when changes were made. Note 3/27/2023 8:41:50 AM - Online Notepad
When clicking a previous version, the app highlights what was added (green) or removed (red) compared to the current version. Even if the user isn't logged in, the