Yotei is a desktop tool that converts on-screen event information into calendar entries. It is designed for users of Google Calendar, Outlook, and other calendar applications. The tool operates by capturing a screenshot of an event displayed on the screen, using a keyboard shortcut and a drag-to-select interface similar to the Snipping Tool. Yotei then extracts details such as the title, date, time, and location from the captured image. The user reviews and confirms these details before the event is added to their calendar. Nothing is saved to the calendar without explicit user approval. The tool has been verified by Google for calendar access and by Microsoft through the Microsoft Partner Program. It is built as a Dutch company with servers located in Germany, and screenshots are automatically deleted within 48 hours. Yotei requests the minimum necessary permissions for calendar integration and does not read other events on the user’s calendar. It supports Google Calendar and Google Workspace, Outlook, Microsoft 365 and Windows Calendar, and Apple iCloud Calendar. When no direct connection is available, Yotei opens the event in the user’s default calendar app for manual entry. Typical use cases include adding events from images sent in chats or emails, converting flyers and booking confirmations into calendar entries, and handling invitations that arrive as screenshots or PDFs. The workflow involves three steps: pressing a shortcut to activate the tool, dragging a box around the event on the screen, and then checking the extracted details before adding the event. Users can edit the event information after it has been added, and Yotei will update the corresponding calendar entry without creating duplicates. The tool aims to reduce the time spent manually retyping event information and minimize the risk of errors during data entry.