# Screen highlighter app for Mac

Lasso is a screen highlighter app for Mac. Draw a translucent highlight over a line of text, part of a slide or a row in a spreadsheet while the app is open. The text stays readable and your original file stays unchanged.

By Nika Sakandelidze. Updated 2026-11-09.

Canonical page: https://www.trylasso.online/guides/highlight-screen-on-mac

![Lasso’s yellow highlighter drawn across the pricing row of a Mac dashboard, with the text and page views still visible](https://www.trylasso.online/images/lasso-live-screen-highlighter.jpg)

A highlight drawn over a row in Lasso’s live screen demo.

## How to highlight part of your screen on a Mac

1. Open the slide, web page or app you want to highlight. With Lasso running, press Option–Shift–A (⌥⇧A) to enter drawing mode.
2. Press H or choose Highlighter in the toolbar. Drag over the part of the screen you want to mark. Hold Shift while dragging to draw a straight highlight.
3. Press Command–Z (⌘Z) to undo the last stroke, or Escape to clear your marks and finish drawing.

## Show highlights in Zoom, Google Meet or Teams

Share the entire display you plan to draw on. Lasso puts marks in a layer above the app, so sharing one window or browser tab can leave the highlight out. Check the shared-screen preview before you start presenting.

In a traffic report, highlight a row across the page name and its view count so your audience can read them together. Use the pen to circle a single number, or press F to draw a fading laser pointer stroke when you only need to point for a moment.

- [Fix missing marks in your screen share](https://www.trylasso.online/guides/annotate-screen-sharing#troubleshooting)

## Save your screen highlights as a screenshot

While drawing, press S to capture the display or Shift–S (⇧S) to select an area. Lasso includes the highlights in the image, which you can copy, save or drag into a message. Drawing works without Screen Recording permission. Capturing an image requires it.

## Mac requirements and price

Lasso runs on macOS 14 Sonoma or later on Apple silicon and Intel Macs. A one-time payment of $9.99 USD including tax gives you lifetime access.

## Related guides

- [How to draw on your Mac screen with Lasso](https://www.trylasso.online/guides/draw-on-screen-mac)
- [How to annotate screenshots on a Mac](https://www.trylasso.online/guides/annotate-screenshots-mac)
- [Annotate a Mac screen share in Zoom, Meet or Teams](https://www.trylasso.online/guides/annotate-screen-sharing)
- [How to draw on your screen in Google Meet on Mac](https://www.trylasso.online/guides/annotate-google-meet-mac)
- [Teach an online lesson with Lasso on your Mac](https://www.trylasso.online/guides/online-teaching-with-lasso)
- [Mac Screen Annotation for AI Agents with Local MCP](https://www.trylasso.online/guides/mcp-screen-annotation)
- [Turn Mac screen annotations into searchable Markdown with Lasso](https://www.trylasso.online/guides/voice-briefs-for-ai-agents)
- [Best screen annotation apps for Mac, compared by use case](https://www.trylasso.online/guides/best-screen-annotation-apps-mac)

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