GPA Peek for Course Explorer (Unofficial)

Unofficial. Shows historical average GPA next to courses and instructors on the UIUC Course Explorer. Collects no data.

GPA Peek adds a small GPA badge next to every course and instructor on the UIUC Course Explorer, so you can compare options while you plan your schedule instead of looking each one up. What you get • Course badge: the student-weighted average GPA of a course, coloured by range, on subject pages, Gen Ed pages and course pages. • Instructor badge: that instructor's average GPA for that specific course, and how many students it is based on. • Hover or click a badge for details: the full grade distribution, a comparison of everyone who has taught the course, and its Gen Ed categories. • Switch between recent years (2022 onward) and all years back to 2005. • Cross-listed courses show the grades recorded under their other course code. • English and Chinese interface. Honest about what it does not know • "n/a" means no published grades: sections with 20 or fewer students are withheld (FERPA), and new courses have no history yet. • Instructor names are matched carefully. If a name could refer to two people, nothing is shown rather than a guess. • Past grade distributions describe past sections. They do not predict your grade. Privacy • Collects nothing. No analytics, no tracking, no account. • Works only on courses.illinois.edu. It reads course codes and instructor names on the page and adds badges; it never sends anything to the university's servers and never performs registration actions. • The only network request is an occasional download of the public grade dataset from this project's own site, so data stays current without updating the extension. Data Grade data comes from University of Illinois public records, compiled by Prof. Wade Fagen-Ulmschneider at github.com/wadefagen/datasets. Averages are weighted by student count; A+ counts as 4.0; W is excluded. Open source (MIT): https://github.com/YiYanYiKong/uiuc-gpa-extension This is an independent student project. It is not affiliated with, sponsored by or endorsed by the University of Illinois.