HdM Notenrechner is a Chrome extension designed specifically for students at the Hochschule der Medien in Stuttgart. This tool addresses a gap in the university's grading portal by automatically calculating average grades, which the original portal does not provide. It enhances the user experience by streamlining the process of tracking academic performance.

In addition to calculating average grades, HdM Notenrechner offers valuable statistics such as semester-specific SWS (Semesterwochenstunden) and ECTS (European Credit Transfer and Accumulation System) credits. The tool is free to use and serves as a practical resource for students managing their academic records. However, users are advised to verify all calculations against the examination regulations, as no guarantees are made regarding accuracy.