SnapMark - Full Page Screenshot, Screen Capture & Annotation Tool

SnapMark is a privacy-first screenshot and annotation tool for Chrome. Everything happens inside your browser — no data is ever uploaded to any server. New in v1.5.0: AI-friendly Export Mode — One-click optimization for pasting screenshots into AI coding agents (Claude, Cursor, Copilot). Exports with 30% higher color saturation, thicker annotations, and smart scaling to stay under AI model's 2576px limit for maximum detail preservation. New in v1.4.0: Text tool upgrade — full IME support for Chinese, Japanese, and Korean input (transparent textarea conduit, same approach as Figma & Excalidraw). Choose from 17 system fonts (PingFang, Microsoft YaHei, SimSun, KaiTi, Arial, Courier New, etc.) and 9 font sizes (12–144px). Drag to set text box width, transparent editing overlay keeps the original image visible. Delete button size now scales proportionally with annotation stroke width. Capture Modes - Visible Area: One-click capture of the current viewport - Full Page: Auto-scroll and stitch the entire page with smart overlap blending. Handles sticky headers and lazy images. - Region Selection: Drag to select any area. Real-time W×H display. Release to capture. - Delayed Capture (Pro): 3/5/10-second countdown for dropdowns, tooltips, and hover states. - Smart Element Selection: Hover over page elements to auto-detect and highlight them. Click to capture precisely. - Clean & Capture (Pro): Remove ads, popups, cookie banners, and other distractions before capturing. Red highlight overlay with click-to-hide, Shift+click for rapid removal, and Undo support. - Batch Capture (Pro): Paste a list of URLs and capture them all automatically. Navigates, waits for page load, and saves each screenshot. Up to 20 URLs per batch. Great for competitor research, design inspiration, and bulk documentation. Annotation Tools - Arrow (A), Rectangle (R), Ellipse (E), Text (T), Freehand (F), Blur/Mosaic (B), Step Numbers (N) - Undo/Redo (Ctrl+Z/Y), drag to move, click to select, Delete to remove - Blue glow, corner handles, dashed border on selected annotations - Color presets and stroke width control (custom color picker — Pro) - Text tool: IME input (Chinese/Japanese/Korean), 17 system fonts, 9 font sizes (12–144px), drag-to-size text box Export Formats - Copy to Clipboard (Ctrl+C) - PNG (lossless, always free) - JPEG — adjustable quality (Pro) - WebP — best balance of quality and size (Pro) - PDF — adjustable page size, watermark-free (Pro — free version includes subtle watermark) - AI Mode — optimized for AI coding agents (Claude, Cursor, Copilot) Privacy - 100% local processing — screenshots never leave your device - No data uploads, no cloud storage - No account required - Minimal permissions: activeTab, scripting, storage, clipboardWrite, contextMenus - Open source — verify our privacy claims yourself Free vs Pro ($39 Lifetime) The free version includes 4 capture modes, all 7 annotation tools, PNG export, and clipboard copy — with no watermark and no ads. It's a fully functional screenshot tool at zero cost. Pro unlocks: - Batch Capture — capture multiple URLs automatically - Clean & Capture — remove page elements before capturing - Timer/countdown captures (3/5/10 seconds) - JPEG, WebP, watermark-free PDF export - 100 history entries (free: 5) - Custom color picker One payment, lifetime access. No subscription. No recurring charges.