The TU Berlin GPA Calculator is a Chrome extension designed specifically for students of the Technical University of Berlin, enabling them to easily calculate their weighted GPA directly from their official transcript page. This tool works offline, ensuring that no data is transmitted outside the user's browser, thus maintaining privacy. It automatically extracts grades and credits from the transcript, simplifying the calculation process for users. Additionally, it effectively manages duplicate course names, ensuring accurate results without manual intervention.

The extension also includes a feature to export the calculated results as a CSV file, allowing students to keep a record of their GPA calculations. The recent version 1.1 has improved functionality by excluding Zusatzmodule from the GPA calculation while still displaying them in the results table. This ensures that students have a clear and concise overview of their academic performance.