CaptureNote is an AI-powered screenshot-to-notes tool designed for students and researchers working with lecture slides, textbook pages, charts, and diagrams. Users upload an image and receive a structured note containing a title, summary, key points, and key terms, all saved to a private searchable library. Unlike plain OCR, CaptureNote uses multimodal AI to interpret visual hierarchy, diagrams, and relationships rather than extracting raw text. Notes can be organized into folders, searched by content, edited, and exported as Markdown. An iPhone app is also available for offline, on-device processing as a one-time purchase.