Canvas Course Wiper od Osman Sayginer

Canvas Course Wiper helps instructors quickly clear out a course they have instructor-level access to, without clicking through and deleting dozens or hundreds of items one at a time.

From a course page, open the toolbar popup, choose which content types to remove (Assignments, Assignment Groups, Quizzes, Modules, Discussions, Announcements, Pages, and/or Files & Folders), type the course ID to confirm, and the extension deletes them using Canvas's own REST API calls under your existing logged-in session.

No API token, no external server, and no data ever leaves your browser. Deletion is permanent and cannot be undone, so it's strongly recommended to test on a sandbox course first.

Requires instructor (or equivalent) permissions on the target course. Works on any Canvas instance hosted on instructure.com.