Cairn - YouTube Course Tracker

by Chaimantec · cairnstudy.com · Education

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Finally finish YouTube courses. Auto-track lectures from Stanford CS, MIT OCW, and any playlist. Sync across devices.

Users

−1 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#204K

#171K among extensions

Version

1.4.0

updated 16 Sep 2026

Users

monthly, 6 months

Latest, 16 Oct 2026: 9 usersMove the mouse over the chart for any month

Ratings count

monthly, 6 months

Latest, 16 Oct 2026: 0 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 Cairn - YouTube Course Tracker

Cairn is a Chrome extension for people working through university lecture series on YouTube — Stanford CS, MIT OCW, and the rest. — Tracks your progress automatically, to the second. No buttons to click. — Syncs across devices when you sign in with Google. — Shows short notes left by other learners at the exact moment they posted them. — Ask questions to AI backed by knowledge base with your own deepseek or GLM key. — Anonymous nicknames. — Community-curated course catalog. — Anyone can add a course from YouTube playlist. — Works fully offline as a guest. Migrate to an account later.