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