Screen Marker

Screen Marker iconA Chrome extension that lets you overlay rectangular markers on the web page you are viewing — just hold a modifier key and drag. No separate software is required; add it to Chrome and start using it right away.

Ideal for presentations, online classes, screen sharing, and design reviews when you want to show “look here” with a highlighted area instead of words. Markers stay fixed on the page until you reload.

How it looks in use

  • Markers and sticky notes on a desk — starting a draw
    1. Hold Shift + Ctrl (customizable) and drag. A key-state indicator appears near the cursor.
  • Highlighting text with a highlighter-style marker
    2. The rectangle stays fixed on the page. Pro lets you keep multiple markers at once.
  • Pens and highlighters in different colors
    3. Adjust color, opacity, line style, thickness, and corner radius in the popup (Pro applies styles fully to drawing).

When Screen Marker helps

  • Point to an area during screen sharing instead of saying “look here”
  • Circle sections in online classes or webinars
  • Mark focus points before taking a screenshot
  • Highlight areas to revise in design reviews
  • Include markers when recording only the browser tab or using OBS

When you share only the browser in a video call, or record a tab with Browser Tab Recorder, your markers appear in the captured video.

Basic usage

  1. By default, hold left Shift + left Ctrl and drag (changeable in the popup).
  2. Set fill color, border color, opacity, thickness, corner radius, and line style (solid, double, wavy, dashed, etc.).
  3. Tap and release the assigned modifier key within about 0.5 seconds to clear all markers for that preset.
  4. Drags that are too small are ignored as accidental input.
Marking a whiteboard with a marker
Adjust styles in settings. Pro adds three presets (Settings 1–3) and fine-grained cursor indicator appearance.

Free vs Pro

FeatureFreePro
Setting tabs13 (separate colors and keys for annotation, emphasis, debugging, etc.)
Simultaneous markers1Multiple
Style applied to drawingUI changes are saved but drawing uses default styleSaved styles apply 100% to drawing
Cursor indicatorSimple circleCustomizable shape and size
Export / import settingsNoneYes (other PCs or team sharing)

Check your license from the in-extension upgrade screen. Pro status may be temporarily unavailable offline. The popup and upgrade screens support multiple languages.

Chrome Web Store

Listed as Screen Marker. Publisher: conexsoft. Rating 5.0, ~38 users, 56 languages. Developer contact: conexsoft@fujigoma.com.

Open in Chrome Web Store