For developers and presenters

Take your screen sharing to the next level

Annotate your screen, highlight your cursor, and spotlight or zoom key areas. Stay on time with on-screen timers and a private notepad only you see. A native Mac app that stays out of your way, with keyboard shortcuts.

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Everything you need for better demos

Annotation, cursor highlight, spotlight, zoom, timers, ghost notes, desktop mat, and more, designed for developers and presenters. Light on CPU, heavy on shortcuts.

Screen annotation

Draw over any screen with pens, highlighters, text, and shapes. Works with Zoom, Meet, Keynote, and OBS. Undo, clear, and optional auto-erase.

Cursor highlight

A ring or squircle around your cursor so viewers follow along. Customize color, opacity, and size. Toggle with a global shortcut.

Spotlight & zoom

Focus attention with a cursor-centered spotlight that dims the rest of the screen. Magnifying glass and true region zoom for key areas.

Dim inactive windows

Dim or blur windows you’re not using so your audience stays focused on the front app. Adjustable intensity and multi-display support.

Hide region

Draw a shape to blur or pixelize that area, ideal for hiding passwords and sensitive data during screen shares. Stays until you clear it.

Keystroke display

Show key presses on screen for tutorials and demos. Customizable position and themes. Never captures input in password fields.

Stage Lights

On-screen stopwatch and countdown so you keep to time without looking away. Choose Backstage (presenter-only) or On stage (visible to everyone).

Ghost Notes

A private notepad window only you see when sharing. Rich text for talking points, reminders, and cues, invisible to your audience. Works with Zoom, Meet, and Teams.

Desktop Mat

Cover the desktop with a fullscreen overlay so files, folders, and widgets are hidden. Cleaner streams and screen shares: choose static wallpaper, solid color, custom image, or blur. One-tap or shortcut.

Why Glowcast

Built for developers and presenters who need focus tools without slowing down their Mac or their workflow.

Light on CPU, no fan spin-up

Efficient overlays and rendering so your Mac stays cool during demos, even with IDE and browser open.

Keyboard-first

Every action has a global shortcut. Map them in Settings or trigger them from any app that can send global key presses.

One subscription, all tools

Annotation, zoom, spotlight, cursor highlight, dim windows, hide region, keystroke display, Stage Lights, Ghost Notes, and Desktop Mat, all in a single native macOS app.

Loved by developers and presenters

From live demos to teaching and sales, Glowcast keeps the focus on what matters without getting in the way.

Alex R.

Staff Engineer

I use Glowcast every day for architecture walkthroughs and live coding. Cursor highlight and spotlight keep the team focused without blocking the IDE.

Sam T.

Online educator

Annotation and zoom make tutorials so much clearer. My students actually see what I’m pointing at. The shortcuts are a lifesaver mid-lesson.

Jordan K.

Solutions consultant

Sales demos are smoother with hide region. I can blur sensitive data on the fly. Configurable shortcuts mean I never fumble for the right tool.

Simple pricing

One plan with all features. Free trial, then $4.99/month. No hidden tiers: annotation, zoom, spotlight, and more, all included.

Pro

Popular

$4.99Per month

Full access to annotation, cursor highlight, spotlight, zoom, dim inactive windows, hide region, and keystroke display. One subscription for all features.

Start 7-day free trial

Screen annotation & whiteboard
Cursor highlight
Spotlight & zoom (incl. true region zoom)
Dim inactive windows
Hide region (blur / pixelize)
Keystroke display
Configurable global shortcuts
7-day free trial

Frequently Asked Questions

Common questions about Glowcast, pricing, and compatibility.

Glowcast runs on macOS 13 (Ventura) and later. We recommend the latest macOS for the best performance and feature set.