Gloomp: Web Annotation and Drawing Tool

Tracking since Apr 2, 2026.

Changelog

• May 1, 2026
  description

  Draw, highlight, and annotate directly on any website with a fast, privacy-first annotation toolbar. No registration required. No payment required. Completely free!
  
  Gloomp turns any webpage into an interactive canvas so you can explain ideas visually, review designs, teach, and share feedback without leaving the page.
  
  ✨ Key Features
  
  ✓ Powerful Drawing & Annotation Tools
  Use Pointer, Pen, Brush, Highlighter, Text Highlighter, Shapes, Eraser, Laser, and Laser Pen for smooth, precise markup.
  
  ✓ Full Shape Toolkit
  Quickly draw 15 shapes: lines, arrows, rectangles, circles/ellipses, triangles, rounded rectangles, hearts, zigzags, stars, hexagons, pentagons, semicircles, cubes, and cylinders.
  
  ✓ Flexible Drawing Position Modes
  Choose how your annotations behave while scrolling:
  • Sticky mode keeps drawings aligned with webpage content.
  • Fixed mode keeps drawings pinned to the viewport.
  
  ✓ Smart Toolbar Experience
  
  • Move the toolbar anywhere on the page
  • Switch between horizontal and vertical layouts
  • Expand or minimize based on your workflow
  
  ✓ Color, Opacity & Thickness Control
  Use the customization toolbar to quickly adjust color, opacity, and stroke thickness for the drawing and shape tools.
  
  ✓ Undo/Redo and Reliable Editing
  Quickly fix mistakes, erase precisely, and continue working without breaking your flow.
  
  ✓ Show or Hide Annotations Anytime
  Temporarily hide drawings for clean viewing, then bring them back instantly.
  
  ✓ Local Storage with Full Privacy
  Your annotations stay on your device and persist across refreshes. No data is sent to external servers.
  
  ✓ Cross-Tab Annotation Availability
  Use annotation tools across open tabs with consistent toolbar and canvas access.
  
  ✓ Screenshot & Capture
  Capture any area of the page — including your annotations — as a JPG or PNG image. Copy to clipboard or download with one click.
  
  ✓ Advanced Settings and Customization
  Use the full Settings page to manage global behavior, tool visibility, toolbar size, and keyboard shortcut keys.
  
  ✨ What's new in v1.8.1
  
  • Added a Screenshot tool to capture any selected area of the page, including your annotations, as a JPG or PNG image. Copy to clipboard or download instantly.
  • Significantly optimized and improved drawing smoothness on pages with many annotations — strokes stay fast and responsive even with thousands of drawings on the page.
  • Added "Enable/Disable Gloomp" keyboard shortcut (default key Q) to instantly toggle Gloomp on or off from any webpage — even when Gloomp is currently disabled.
  • User interface improvements and bug fixes.
  
  ✨ What's new in v1.7.3
  
  • Added a new Advanced settings section in Settings.
  • Added Toolbar size options (Small, Medium, Large) to resize toolbar controls based on your preference.
  • Added drawing-focus visibility options to hide the toolbar or color palette during active drawing.
  • Added Shift-key shape constraints so supported shapes lock to square bounds and line-based shapes snap to standard angles while drawing.
  • Added a new customization toolbar with Opacity and Thickness controls for supported drawing and shape tools.
  • Added global sync options for opacity and thickness in Advanced settings, alongside per-tool style persistence.
  • Fixed an issue where keyboard shortcuts are not shown in options.
  
  ✨ What's new in v1.4.2
  
  • Added the new Text Highlighter tool to highlight real webpage text directly.
  • Added keyboard shortcuts for faster tool switching.
  • Added a dedicated Settings page to manage Gloomp settings, tool visibility, and shortcut keys.
  • Added quick access to Settings directly from the popup.
  • Added a new Drawing Position setting with Sticky and Fixed options.
  • Improved popup and settings page loading speed.
  • Improved sticky drawing performance and scrolling smoothness on very large webpages.
  • Fixed toolbar visibility consistency when toggling enable/disable.
  
  ✨ What's new in v1.0.0
  
  • Full annotation toolkit with Pen, Brush, Highlighter, Eraser, Laser, and Laser Pen.
  • Full shape toolkit with line, arrow, rectangle, rounded rectangle, circle/ellipse, triangle, heart, zigzag, star, hexagon, pentagon, semicircle, cube, and cylinder.
  • Real-time shape preview while dragging for accurate placement.
  • Flexible toolbar with drag, horizontal/vertical layouts, and expanded/minimized modes.
  • Popup control for default toolbar visibility across tabs.
  • Color palette controls for drawing and shape tools with per-tool/global color behavior.
  • Undo/Redo support and show/hide annotations controls.
  • Local, privacy-first annotation storage on device.
  
  ✨ Privacy First
  
  • No tracking
  • No data collection
  • Everything stays on your device
  
  ✨ Make any webpage easier to explain, review, and collaborate on with modern annotation tools built for speed and privacy.

  Draw, highlight, and annotate directly on any website with a fast, privacy-first annotation toolbar. No registration required. No payment required. Completely free!
  
  Gloomp turns any webpage into an interactive canvas so you can explain ideas visually, review designs, teach, and share feedback without leaving the page.
  
  ✨ Key Features
  
  ✓ Powerful Drawing & Annotation Tools
  Use Pointer, Pen, Brush, Highlighter, Text Highlighter, Text, Shapes, Eraser, Laser, and Laser Pen for smooth, precise markup.
  
  ✓ Full Shape Toolkit
  Quickly draw 15 shapes: lines, arrows, rectangles, circles/ellipses, triangles, rounded rectangles, hearts, zigzags, stars, hexagons, pentagons, semicircles, cubes, and cylinders.
  
  ✓ Flexible Drawing Position Modes
  Choose how your annotations behave while scrolling:
  • Sticky mode keeps drawings aligned with webpage content.
  • Fixed mode keeps drawings pinned to the viewport.
  
  ✓ Select, Move & Resize Annotations
  Click any drawing or shape with the Pointer tool to select it — then drag to move, drag a corner handle to resize, or delete it. All edits support full undo/redo.
  
  ✓ Smart Toolbar Experience
  • Move the toolbar anywhere on the page
  • Switch between horizontal and vertical layouts
  • Expand or minimize based on your workflow
  
  ✓ Color, Opacity & Thickness Control
  Use the customization toolbar to quickly adjust color, opacity, and stroke thickness for the drawing and shape tools.
  
  ✓ Undo/Redo and Reliable Editing
  Quickly fix mistakes, erase precisely, and continue working without breaking your flow.
  
  ✓ Show or Hide Annotations Anytime
  Temporarily hide drawings for clean viewing, then bring them back instantly.
  
  ✓ Local Storage with Full Privacy
  Your annotations stay on your device and persist across refreshes. No data is sent to external servers.
  
  ✓ Cross-Tab Annotation Availability
  Use annotation tools across open tabs with consistent toolbar and canvas access.
  
  ✓ Screenshot & Capture
  Capture any area of the page — including your annotations — as a JPG or PNG image. Copy to clipboard or download with one click.
  
  ✓ Advanced Settings and Customization
  Use the full Settings page to manage global behavior, tool visibility, toolbar size, and keyboard shortcut keys.
  
  ✨ What's new in v1.10.0
  
  • Added a Text annotation tool — click anywhere on the page to place a text box, type your content, and commit it as a drawing. Supports font, size, bold, italic, strikethrough, alignment, color, and opacity per text box.
  • Added Select & Edit Mode — use the Pointer tool to click any drawing or shape, drag to move it, drag a corner handle to resize it, or delete it with the on-canvas button or keyboard. All edits support undo/redo.
  • Added a Gloomp theme setting (Light / Dark / Auto) in the popup and Settings page. Lock the theme to always Light or always Dark, or use Auto to follow the website and OS preference.
  
  ✨ What's new in v1.8.1
  
  • Added a Screenshot tool to capture any selected area of the page, including your annotations, as a JPG or PNG image. Copy to clipboard or download instantly.
  • Added "Enable/Disable Gloomp" keyboard shortcut (default key Q) to instantly toggle Gloomp on or off from any webpage — even when Gloomp is currently disabled.
  • Significantly improved drawing smoothness on pages with many annotations. Strokes stay responsive even with many drawings on the page.
  • User interface label improvements across the popup and Settings page.
  
  ✨ What's new in v1.7.3
  
  • Added a new Advanced settings section in Settings.
  • Added Toolbar size options (Small, Medium, Large) to resize toolbar controls based on your preference.
  • Added drawing-focus visibility options to hide the toolbar or color palette during active drawing.
  • Added Shift-key shape constraints so supported shapes lock to square bounds and line-based shapes snap to standard angles while drawing.
  • Added a new customization toolbar with Opacity and Thickness controls for supported drawing and shape tools.
  
  ✨ What's new in v1.4.2
  
  • Added the new Text Highlighter tool to highlight real webpage text directly.
  • Added keyboard shortcuts for faster tool switching.
  • Added a dedicated Settings page to manage Gloomp settings, tool visibility, and shortcut keys.
  • Added quick access to Settings directly from the popup.
  • Added a new Drawing Position setting with Sticky and Fixed options.
  
  ✨ What's new in v1.0.0
  
  • Full annotation toolkit with Pen, Brush, Highlighter, Eraser, Laser, and Laser Pen.
  • Full shape toolkit with line, arrow, rectangle, rounded rectangle, circle/ellipse, triangle, heart, zigzag, star, hexagon, pentagon, semicircle, cube, and cylinder.
  • Real-time shape preview while dragging for accurate placement.
  • Flexible toolbar with drag, horizontal/vertical layouts, and expanded/minimized modes.
  • Color palette controls for drawing and shape tools with per-tool/global color behavior.
  • Undo/Redo support and show/hide annotations controls.
  • Local, privacy-first annotation storage on device.
  
  ✨ Privacy First
  
  • No tracking
  • No data collection
  • Everything stays on your device
  
  ✨ Make any webpage easier to explain, review, and collaborate on with modern annotation tools built for speed and privacy.

• Apr 17, 2026
  description

  Draw, highlight, and annotate directly on any website — completely free and privacy-first.
  
  This extension turns any webpage into an interactive canvas, allowing you to visually explain, mark up, and emphasize content in real time. It is useful for reviewing designs, teaching, analyzing data, or adding quick notes without leaving the page.
  
  Key Features
  
  * Multiple Drawing Tools
    Use Pen, Brush, Highlighter, Eraser, Laser, and Laser Pen to interact with web content with precision and ease.
  
  * Show or Hide Annotations
    Temporarily hide or reveal your drawings without losing them. Ideal for presentations or quick comparisons.
  
  * Easy Deletion
    Remove specific drawings or clear all annotations whenever needed.
  
  * Local Storage with Full Privacy
    All drawings are stored locally on your device and persist even after refreshing or reopening the browser. No data is sent to any server.
  
  * Flexible Toolbar
  
    * Move the toolbar anywhere on the page
    * Switch between horizontal and vertical layouts
    * Maximize while in use, minimize when not needed
    * Completely disable it anytime for a distraction-free experience
  
  * Automatic Theme Adaptation
    The toolbar automatically switches between dark and light mode based on the website’s theme, ensuring a seamless visual experience.
  
  Privacy First
  
  * No tracking
  * No analytics
  * No data collection
  * Everything stays on your device
  
  Upcoming Features
  
  * Color selection support for all tools
  * Adjustable stroke thickness
  * Opacity control for better highlighting and visibility
  
  Upcoming Tools
  
  * Shape tools such as circle, rectangle, and triangle
  * Line and arrow tools for structured annotations
  * Additional enhancements to improve drawing precision and usability
  
  Make any webpage interactive and easier to work with using simple, powerful annotation tools built with privacy in mind.

  Draw, highlight, and annotate directly on any website with a fast, privacy-first annotation toolbar. No registration required. No payment required. Completely free!
  
  Gloomp turns any webpage into an interactive canvas so you can explain ideas visually, review designs, teach, and share feedback without leaving the page.
  
  ✨ Key Features
  
  ✓ Powerful Drawing & Annotation Tools
  Use Pointer, Pen, Brush, Highlighter, Text Highlighter, Shapes, Eraser, Laser, and Laser Pen for smooth, precise markup.
  
  ✓ Full Shape Toolkit
  Quickly draw 15 shapes: lines, arrows, rectangles, circles/ellipses, triangles, rounded rectangles, hearts, zigzags, stars, hexagons, pentagons, semicircles, cubes, and cylinders.
  
  ✓ Flexible Drawing Position Modes
  Choose how your annotations behave while scrolling:
  • Sticky mode keeps drawings aligned with webpage content.
  • Fixed mode keeps drawings pinned to the viewport.
  
  ✓ Smart Toolbar Experience
  
  • Move the toolbar anywhere on the page
  • Switch between horizontal and vertical layouts
  • Expand or minimize based on your workflow
  
  ✓ Color, Opacity & Thickness Control
  Use the customization toolbar to quickly adjust color, opacity, and stroke thickness for the drawing and shape tools.
  
  ✓ Undo/Redo and Reliable Editing
  Quickly fix mistakes, erase precisely, and continue working without breaking your flow.
  
  ✓ Show or Hide Annotations Anytime
  Temporarily hide drawings for clean viewing, then bring them back instantly.
  
  ✓ Local Storage with Full Privacy
  Your annotations stay on your device and persist across refreshes. No data is sent to external servers.
  
  ✓ Cross-Tab Annotation Availability
  Use annotation tools across open tabs with consistent toolbar and canvas access.
  
  ✓ Screenshot & Capture
  Capture any area of the page — including your annotations — as a JPG or PNG image. Copy to clipboard or download with one click.
  
  ✓ Advanced Settings and Customization
  Use the full Settings page to manage global behavior, tool visibility, toolbar size, and keyboard shortcut keys.
  
  ✨ What's new in v1.8.1
  
  • Added a Screenshot tool to capture any selected area of the page, including your annotations, as a JPG or PNG image. Copy to clipboard or download instantly.
  • Significantly optimized and improved drawing smoothness on pages with many annotations — strokes stay fast and responsive even with thousands of drawings on the page.
  • Added "Enable/Disable Gloomp" keyboard shortcut (default key Q) to instantly toggle Gloomp on or off from any webpage — even when Gloomp is currently disabled.
  • User interface improvements and bug fixes.
  
  ✨ What's new in v1.7.3
  
  • Added a new Advanced settings section in Settings.
  • Added Toolbar size options (Small, Medium, Large) to resize toolbar controls based on your preference.
  • Added drawing-focus visibility options to hide the toolbar or color palette during active drawing.
  • Added Shift-key shape constraints so supported shapes lock to square bounds and line-based shapes snap to standard angles while drawing.
  • Added a new customization toolbar with Opacity and Thickness controls for supported drawing and shape tools.
  • Added global sync options for opacity and thickness in Advanced settings, alongside per-tool style persistence.
  • Fixed an issue where keyboard shortcuts are not shown in options.
  
  ✨ What's new in v1.4.2
  
  • Added the new Text Highlighter tool to highlight real webpage text directly.
  • Added keyboard shortcuts for faster tool switching.
  • Added a dedicated Settings page to manage Gloomp settings, tool visibility, and shortcut keys.
  • Added quick access to Settings directly from the popup.
  • Added a new Drawing Position setting with Sticky and Fixed options.
  • Improved popup and settings page loading speed.
  • Improved sticky drawing performance and scrolling smoothness on very large webpages.
  • Fixed toolbar visibility consistency when toggling enable/disable.
  
  ✨ What's new in v1.0.0
  
  • Full annotation toolkit with Pen, Brush, Highlighter, Eraser, Laser, and Laser Pen.
  • Full shape toolkit with line, arrow, rectangle, rounded rectangle, circle/ellipse, triangle, heart, zigzag, star, hexagon, pentagon, semicircle, cube, and cylinder.
  • Real-time shape preview while dragging for accurate placement.
  • Flexible toolbar with drag, horizontal/vertical layouts, and expanded/minimized modes.
  • Popup control for default toolbar visibility across tabs.
  • Color palette controls for drawing and shape tools with per-tool/global color behavior.
  • Undo/Redo support and show/hide annotations controls.
  • Local, privacy-first annotation storage on device.
  
  ✨ Privacy First
  
  • No tracking
  • No data collection
  • Everything stays on your device
  
  ✨ Make any webpage easier to explain, review, and collaborate on with modern annotation tools built for speed and privacy.

• Apr 17, 2026
  short_description

  Capture and annotate webpages with pen, highlighter, laser, eraser, and toolbar controls for fast visual collaboration.

  Annotate webpages with pen, brush, highlighter, text highlighter, shapes, laser tools, shortcuts, and Sticky/Fixed drawing modes.

• Apr 17, 2026
  host_permissions

  *://*/*

  <all_urls>

• Apr 17, 2026
  permissions

  storage

  storage, scripting, activeTab

Permissions & access

Permissions

storagescriptingactiveTab

Host access

<all_urls>

Screenshots