Privacy Policy — GUC Timetable Matrix

Last updated: September 2026

GUC Timetable Matrix is a browser extension that reads the schedule table on apps.guc.edu.eg/student_ext/ and displays it as a personalized, color-coded timetable inside the extension's own popup.

What data the extension accesses

When you open the extension while viewing your GUC schedule page, it reads the schedule table already visible on that page (course names, sections, rooms, and time slots) so it can rebuild it as a filtered, color-coded grid.

What the extension does with that data

• The data is parsed and rendered entirely inside your own browser.
• Your dropdown selections and the last scanned schedule are cached locally using chrome.storage.local, so the popup still works if you reopen it without re-visiting the portal.
• When you click "Export PDF," the PDF is generated locally in your browser and downloaded directly to your computer.

What the extension does not do

• It does not send any data to an external server.
• It does not use analytics, tracking pixels, or third-party scripts of any kind.
• It does not collect, store, or transmit your GUC login credentials — the extension never sees your password; it only reads the schedule page after you've logged in yourself.
• It cannot read or run on any website other than apps.guc.edu.eg/student_ext/*.

Data retention

Cached schedule data lives only in chrome.storage.local, which is local to your own browser profile. It is automatically cleared if you remove the extension, and is never synced to any account or server.

Contact

Questions about this policy can be raised via the project's GitHub repository: github.com/mohamedmostafa-eng/GUC_Schedule_creator .