Automatically detects Caltech course codes on web pages and displays helpful tooltips.
Users
17
−2 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
2
0 in 30 days
Store rank
#159K
#133K among extensions
Version
1.1.0
updated 16 Sep 2025
Users
monthly, 13 months
Latest, 16 Oct 2026:17 usersMove the mouse over the chart for any month
Ratings count
monthly, 13 months
Latest, 16 Oct 2026:2 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Caltech Course Code Tooltip
Instantly view Caltech course details on the web.
This extension automatically detects Caltech course codes (like "CS 1", "Ma 108", or "Ph1a") on any webpage and shows you helpful tooltips with course information, including title, units, terms offered, prerequisites, and instructors.
Key Features:
Click to Pin - Click any tooltip to keep it open for detailed reading
Cycle courses - Clicking multiple times on course lists (e.g. Ay 121-127) will cycle through each course.
Manual Lookup - Search for specific courses using the popup (click the extension icon)
Customizable - Toggle instructors, adjust tooltip timing, and more in settings
Getting Started:
1. Pin this extension to your toolbar for easy access
2. Visit any webpage with Caltech course codes
3. Hover over course codes to see instant tooltips
4. Click the extension icon to search courses manually or adjust settings
Perfect for students planning their course schedules, faculty writing syllabi, or anyone researching Caltech's academic offerings. Works on course catalogs, academic papers, student forums, and any other webpage mentioning Caltech courses.