MarkScreen - Annotate Webpages & Screenshot

About

Need to give visual feedback on a webpage? MarkScreen lets you draw directly on any page, mark up issues, and capture clean screenshots — without leaving your browser.

Who uses MarkScreen:
• QA & developers — mark exactly what's broken before filing a bug report
• Designers & PMs — draw feedback on live pages and mockups instantly
• Teachers & content creators — annotate web content for tutorials and guides
• Anyone who wants to show, not just tell

🔒 Privacy first — no account, no data collection. Everything stays on your device.

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🎨 Drawing & Annotation Tools
• Pen — freehand drawing with adjustable color and width
• Highlighter — semi-transparent emphasis
• Arrow — point to what matters
• Line — straight lines (hold Shift for perfect angles)
• Rectangle & Circle — frame and highlight elements
• Text — add notes anywhere on the page
• Callout — numbered step markers that auto-increment (①②③)
• Blur — hide sensitive info before sharing
• Emoji — add visual stickers

📸 Capture Options
• Viewport capture — grab exactly what's visible
• Crop tool — select any specific region
• Timer — 3 or 5 second delay to capture menus and tooltips
• Copy to clipboard — paste directly into Slack, Jira, email
• Download as PNG

⌨️ Keyboard Shortcuts
• Alt+Shift+D — toggle on/off instantly
• 1–9, 0 — switch tools without touching the mouse
• Ctrl+Z / Ctrl+Y — undo / redo
• Ctrl+S — quick save screenshot
• ? — show all shortcuts

✨ More
• Select, move, and resize any annotation after placing
• Edit text after placing
• Works on any webpage — including local files
• Lightweight, fast, no bloat