MarkScreen - Annotate Webpages & Screenshot

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. --- 🎨 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