Shadowmark

Visual context for AI agents. Annotate any element on any website — capture selectors, styles, and framework data.

Shadowmark gives AI coding agents the visual context they need. Click any element on any website to annotate it. Shadowmark captures CSS selectors, computed styles, accessibility data, and framework component details automatically — no code changes required. HOW IT WORKS 1. Click the floating toolbar on any page 2. Select elements and describe what you want changed 3. Hit "Copy for AI" and paste into your AI coding tool WHAT IT CAPTURES - CSS selectors and XPath for precise element targeting - Computed styles (colors, fonts, spacing, layout) - Framework component names, props, and state when available - ARIA roles and accessibility attributes - Developer notes per element FEATURES - Works on any website, including ones you don't own - Detects and extracts data from popular frontend frameworks - Shadow DOM isolation — zero CSS conflicts with the host page - Freeze animations to capture the exact UI state - Multi-element selection with numbered badges - One-click copy as structured Markdown or JSON to clipboard - No signup, no tracking, no data collection Free forever