Highlight Extension Chrome

Professional highlighting and presentation toolkit: interactive auto-focus, dynamic zoom/pan, click ripple effects, and more

Highlight Extension — Studio Presentation Zoom, Laser Pointer, Keystroke HUD & Web Marker The ultimate presentation, tutorial recording, and visual guidance toolkit for Chrome. Turn any webpage into an interactive presentation stage. Inspired by high-end video recording tools like FocuSee and Screen Studio, Highlight Extension gives you cinematic auto-zooms, real-time laser pointers, live keypress visualizers, resizable spotlights, and news-style highlighters — all live inside your browser without needing post-production video editing. Whether you are teaching, hosting client demos on Google Meet or Zoom, recording YouTube tutorials, or conducting code reviews, Highlight Extension guides your audience's eyes exactly where they need to be. WHAT IS HIGHLIGHT EXTENSION? Highlight Extension is a professional Chrome extension engineered for educators, content creators, product managers, developers, and presenters. It elevates standard browser interaction with studio-grade visual effects: automatically zoom into elements or typing boxes, trail your cursor with a neon laser, showcase your keyboard hotkeys live, isolate UI sections with a spotlight, and permanently annotate text and web layouts. CORE PRESENTATION & RECORDING FEATURES 1. FocuSee-Style Dynamic Auto-Zoom (Alt + Z) - Cinematic Studio Deceleration: Zooms into elements using a silky-smooth camera deceleration curve, completely eliminating jitter, drift, or vertical wobble. - Multiple Smart Trigger Modes: * Hover-to-Zoom (with Circular Progress Ring): Hover cursor over any element for a configurable delay (0.4s – 2.5s) to watch an animated SVG ring fill up and zoom in. * Alt + Hover (Instant): Hold Alt and hover for instantaneous focal zooms. * Click-to-Zoom: Zooms immediately upon clicking an element. * Typing & Input Focus: Automatically and smoothly zooms into search bars, input fields, and textareas when placing your cursor to type. - Edge-Aware Screen Clamping: Left-side menus (like ChatGPT, documentation trees, navigation sidebars) and right-side panels are automatically compensated so text and icons never get cut off or disappear outside the screen boundary. - Soft Perimeter Vignette: Inset cinematic perimeter shadow that gently darkens the outer screen, keeping full focus on the active content. - Auto-Exit Timer & Quick Exits: Automatically and smoothly glides back to normal view after 2.5s (customizable from 1.5s to 5.0s), or exit instantly with a scroll down or double-click. 2. Presentation Laser Pointer & Particle Trails (Alt + L) - Project a glowing neon red laser dot with dynamic trailing particles that follows your cursor in real time. - Makes cursor tracking effortless on large 4K monitors, projectors, and compressed screen recordings. 3. Live Keystroke HUD Visualizer - Displays real-time floating keypress badges at the bottom of the screen. - Perfectly visualizes keyboard combinations (such as Ctrl + C, Cmd + V, Alt + Tab, Shift + Enter) so viewers can follow every shortcut you use. 4. Interactive Spotlight with Dynamic Wheel Resize (Alt + S) - Darkens and blurs the entire webpage while casting a crisp spotlight beam around your mouse pointer. - Dynamic Wheel Scaling: While spotlight is active, hold Ctrl or Alt and roll your mouse wheel to dynamically shrink or expand the spotlight radius from 60px to 300px. 5. Live Canvas Annotations & Directional Arrows (Alt + D) - Freehand Draw Mode: Draw circles, notes, and underlines directly over live web apps. - Directional Arrow Tool: Snap clean callout arrows from point A to point B to direct viewer attention. - Retina High-DPI Canvas: Crisp, anti-aliased rendering on Mac Retina and 4K displays with a 1-click canvas clear button. 6. Tactile Click Audio Feedback & Ripple Waves - Synthesized Click Pop SFX: Built with Web Audio API for zero-latency auditory click feedback (no external audio files needed). - Click Ripple Waves: Smooth animated ripple rings that burst on click, with custom hex color customization. 7. Draggable In-Page Floating Toolbar - A translucent floating dock that sits discreetly on the page. - Features a grab handle so you can drag and reposition the toolbar anywhere on your screen. - Offers 1-click toggles for Auto-Zoom, Laser, Spotlight, Draw, Arrow, and Clear. CLASSIC HIGHLIGHTING & MARKER TOOLS 8. Permanent News-Style Text Highlighter - Select and highlight any text on the web just like a real marker pen. - Choose from 6 distinct styles: Solid, Marker, Glow, Underline, Contrast, and Brush. - Highlights stay intact as you scroll, with one-click individual or global removal. 9. Area Box Highlighter - Click and drag over any empty section to draw a glowing rectangular callout box. - Customize corner radius (sharp box to rounded pill), outset gradient glow, and border thickness. 10. Double-Click Element Zoom - Quick double-click on any isolated DOM card, image, or section to elevate and pop it above the rest of the page. COMPLETE POPUP CUSTOMIZATION PANEL Every single feature can be toggled on or off individually from the clean popup interface: - Master Toggles: Keep features off until you need them, or enable your favorite workflow. - Auto-Zoom Settings: Adjust zoom magnification (1.2x – 2.5x), hover trigger delay (0.4s – 2.5s), and auto-exit duration (1.5s – 5.0s). - Styling Controls: Full RGB hex color pickers for ripples, text highlighters, and area outset glows. - Spotlight Controls: Slider controls for background blur intensity (0 – 20px) and radius. - Settings Sync: All preferences automatically save and sync across browser sessions. WHO IS THIS FOR? - Teachers & Online Instructors: Keep students engaged during live Google Meet or Zoom classes by spotlighting UI elements and showing keystroke shortcuts. - Content Creators & YouTubers: Record high-end software walkthroughs and SaaS tutorials with automated zooms and laser trails to save hours of video editing. - Product Managers & Developers: Present feature demos, record crisp bug reports, and walk stakeholders through complex user flows. - Sales Teams & Solutions Engineers: Deliver captivating client demos that highlight product value propositions without visual clutter. - Researchers, Writers & Students: Mark text with permanent colored brushes across articles and documentation for organized note-taking. DEFAULT KEYBOARD SHORTCUTS - Alt + Z: Toggle Auto-Zoom Engine - Alt + L: Toggle Presentation Laser Pointer - Alt + S: Toggle Mouse Spotlight Mode - Alt + D: Toggle Freehand Drawing Mode - Double-Click: Quick Element Elevation Zoom or Instant Zoom Reset - Scroll Down: Instant smooth zoom reset - Ctrl/Alt + Wheel: Resize Spotlight beam (while spotlight is active) PRIVACY & SECURITY FIRST Highlight Extension is designed with strict privacy standards: - Minimal Permissions: Only uses activeTab, storage, and alarms (for licensing validation). - Zero Telemetry: No browsing history, keystrokes, personal notes, or visited URLs are ever collected or sent to external servers. - 100% Local Processing: Audio synthesis, canvas rendering, and camera scaling run entirely within your local browser sandbox. PRO LICENSE Highlight Extension is available with a lifetime license via Gumroad. A single license key unlocks all present and future studio presentation tools. - Instant Activation: Enter your license key directly inside the extension popup. - All Features Unlocked: Full access to Auto-Zoom, Laser Pointer, Keystroke HUD, Spotlight, SFX, and Highlighters. - Lifetime Updates: Ongoing compatibility and feature upgrades. VERSION HISTORY v2.5 — Latest Release - Added FocuSee-style Dynamic Auto-Zoom with animated circular hover ring. - Added Smart Edge-Aware Clamping (prevents sidebars and menus from being cut off). - Added Typing / Input Focus Zoom mode. - Added Presentation Laser Pointer with trailing particle physics (Alt + L). - Added Live Keystroke HUD Overlay for shortcut demonstrations. - Added Interactive Spotlight with dynamic mouse wheel resizing (Alt + S). - Added Draggable Floating In-Page Toolbar. - Added Web Audio API click pop sound effects and customizable neon ripples. - Added Auto-Exit Duration timer control (1.5s – 5.0s). v2.3 - Full Gumroad license integration with in-popup key activation. v2.2 - Text highlighter with 6 visual brush styles (Solid, Marker, Glow, Underline, Contrast, Brush). v2.1 - Area box highlighter with outset gradient glow and corner radius adjustments.