What's That Course?

Search for Cornell University courses by their course codes.

As of May 2026, What's That Course? has 8 users in the Productivity category.

Usersup 14.3 percent+14.3%
8
8
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.0
Manifest V3

History

2 snapshots

Tracking since Apr 1, 2026.

9.1686.84Apr 1, 2026May 30, 2026
View as table
DateUsersRatingReviewsVersion
Apr 1, 202671.0
May 30, 202691.0
Now81.0

Permissions & access

Permissions
storagecontextMenusscriptingcommandsactiveTab
Host access
None declared

Screenshots

What's That Course? screenshot 1What's That Course? screenshot 2What's That Course? screenshot 3

About

Have you ever found yourself staring at random course codes on Ed Discussion, reading through a list of course prerequisite codes, or browsing course reviews on the r/Cornell subreddit? Despite knowing the subject, you're left without the course title, forcing you to open up the Class Roster and search the code yourself.

Introducing "What's That Course?" - your handy tool for instantly decoding Cornell course codes right in your browser. This Chrome extension is designed to save you time and effort by providing quick access to course titles directly from any webpage. No more manual searches or switching tabs; simply highlight the course code, and let "What's That Course?" do the rest!

With "What's That Course?," you can instantly look up Cornell course titles by highlighting any course code. The extension integrates seamlessly into your context menu, allowing you to right-click on any selected course code to search directly. You can also use the extension's popup to manually enter and search for course codes. As an added convenience, hovering over highlighted course codes will display their titles in a tooltip without leaving the page.

To highlight all the courses on your page automatically, simply press the Detect Courses button in the extension's popup. This will scan the page for any course codes and highlight them for you, making it easier than ever to find the information you need.

This extension is perfect for use on Ed Discussion, Reddit, and more. Save time and streamline your academic planning with "What's That Course?" No more guessing, no more switching tabs - just the information you need, right when you need it.

Developed by Will Rosenthal.

Technical

Version
1.0
Manifest
V3
Size
34.44KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
amnpkieecicdklmhdjjhfhjflkfphmag
Developer ID
ue6aa388cc26f4f6337967d71fea01bb3
Developer Email
[email protected]
Created
Aug 6, 2024
Last Updated (Store)
Aug 6, 2024
Last Scraped
May 30, 2026
Website
Support URL

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Data sourced from the Chrome Web Store · last verified May 30, 2026.