ZoomIt is a beloved Sysinternals utility from the Windows world (with a recent macOS release). Scribbble is a Mac-first app built around drawing on the screen, and now with Magnify, it covers ZoomIt's signature screen zoom too.
ZoomIt is a free annotation, zoom and break-timer utility from Microsoft Sysinternals. It originated on Windows and Microsoft has since released a macOS build. Its strength is its zero-friction hotkeys and the integrated zoom feature.
| Feature | Scribbble | ZoomIt |
|---|---|---|
| macOS support | Yes (Mac-first) | Yes (recent port) |
| Apple Silicon native | ||
| Pen tool | ||
| Highlighter | Limited | |
| Shapes (arrow, rectangle, ellipse) + Text | Limited | |
| Spotlight (focus dim) | ||
| Measure tool | ||
| Magnify (screen zoom) | ||
| Snapshot capture (screen or region) | ||
| Whiteboard mode | ||
| Dock toolbar left or right | ||
| Break timer | ||
| Modern Mac-style UI | Sysinternals utility style | |
| Pricing | Free download. Optional one-time license. | Free. |
Yes. Microsoft has released a macOS build of ZoomIt. Scribbble is an alternative built Mac-first, focused purely on drawing on the screen with a modern UI rather than the classic Sysinternals utility look.
Yes. Scribbble's Magnify tool zooms into the live screen so you can blow up small text, code or UI detail mid-presentation, then drop back out with a hotkey. It's the same job ZoomIt's zoom does, in a Mac-native app that also gives you Spotlight, Measure and Snapshot. ZoomIt still has the break timer if you need one.
Yes. Scribbble's Whiteboard mode drops a blank canvas over your screen with a hotkey, so you can sketch a diagram or work through a problem when there's nothing on screen worth annotating yet, then dismiss it and go back to drawing on your apps.
Yes. Scribbble supports multi-monitor setups: you can annotate on whichever display you're presenting from, or draw across all of them, which matters if you run slides on an external display and notes on your laptop screen.