CS Concept Companion

by Aayush Grover · Education

Manifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Highlight any computer science term while you read and get a clear, beginner-friendly explanation without leaving the page.

Users

−1 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#244K

#204K among extensions

Version

1.0.0

updated 27 Jul 2026

Users

monthly, 3 months

Latest, 15 Oct 2026: 5 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 months

Latest, 15 Oct 2026: 1 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 CS Concept Companion

CS Concept Companion helps you understand computer science concepts while you read — without leaving the page. Highlight any CS term on a webpage (documentation, articles, tutorials, textbooks), click "Explain," and get a clear, beginner-friendly explanation right beside your selection. FEATURES • Live explanations from Wikipedia — works with almost any CS term, no setup • Offline Demo Mode — a curated dictionary of 50+ core concepts • Optional AI Mode — use your own OpenAI-compatible API key • Save concepts to a personal library you can search and review • Recent history and simple learning stats • Light and dark themes, full keyboard support • Keyboard shortcut: Ctrl/⌘ + Shift + E PRIVACY No analytics, no tracking, no data collection. In Demo Mode nothing leaves your device. In Live Mode, only the term you highlight is sent to Wikipedia to fetch its article — never the whole page.