Download ZoomIt for Windows PC v12.3 for Windows PC

ZoomIt 12.3 is Microsoft Sysinternals' free presentation tool for Windows: magnify any part of the live screen, draw and type over it, run break...

Features

• Live zoom magnifies the real, still-updating screen around the pointer with smooth wheel-controlled zoom levels, so audiences can actually read small code, menus and dialog text.
• The drawing mode is a complete annotation kit in one keystroke — coloured pens, lines, rectangles, ellipses, arrows, typed text, and blank whiteboard and blackboard pages.
• The break timer counts down over a custom background image for lessons and conferences, while typing and demonstration timers help pace live demos without watching a clock.
• Screen snipping and recording are built into recent versions, so a zoomed, annotated moment can be captured as an image or a short video without a second tool.
• It is free, Microsoft-signed and fully portable, lives quietly in the system tray with fully configurable hotkeys, and needs no installation or account to use.

Considerations

• The interface is almost entirely hotkey-driven, so new presenters must memorise the zoom, draw and timer shortcuts — and reassign any that clash with other software.
• Annotations live only as a temporary overlay and disappear when you leave drawing mode, so ZoomIt is not a substitute for a whiteboard app that saves and organises boards.
• Recording is a straightforward capture feature with no timeline editing, webcam overlay or production controls, so polished tutorials still need a dedicated recording tool.

ZoomIt, written by Mark Russinovich and published by Microsoft Sysinternals, is built around one core ability: live screen zoom. Press Ctrl+1 and the screen magnifies around the pointer — the desktop stays live underneath, not a frozen screenshot — with the mouse wheel adjusting the zoom level. LiveZoom (Ctrl+4) magnifies the full screen while windows keep updating. That central trick, magnifying the real, still-updating screen in one keystroke, is something Windows still does not offer presenters, and it is why trainers and teachers have kept ZoomIt within reach for years: zoom into a dense settings page or a line of code and the audience can actually read it. Within its job — making a live screen legible and point-at-able — nothing free does it better.

Press Ctrl+2 and the same screen becomes a canvas: freehand pen in several colours, straight lines, rectangles, ellipses and arrows, typed text, and blank whiteboard or blackboard modes for working through an idea from scratch. Zoom in, draw an arrow to the exact control, type a label over it, then drop back to the normal desktop with Esc — a single fluid gesture once it is in your fingers. The honest limit: annotations live only as a temporary overlay — drawings vanish when you exit draw mode unless you save a copy — so ZoomIt is not a substitute for a whiteboard app that saves and organises boards.

A configurable break timer (Ctrl+3) counts down over your own background image for classroom and conference pauses — the detail presenters end up using daily — and typing and demonstration timers pace live demos without watching a clock. Recent versions add screen snipping and recording alongside the classic tools, though recording is a quick-capture feature rather than an editor, so polished tutorials still need a dedicated tool. Everything is driven by configurable hotkeys from the system tray, with no installer: version 12.3 ships as a portable ZIP from Microsoft containing ZoomIt.exe and ZoomIt64.exe, free and Microsoft-signed — a tray tool that appears only when called. The price of the design is memory work: the first sessions involve memorising Ctrl+1, Ctrl+2, Ctrl+3 and the drawing-mode keys, and those hotkeys can clash with drawing or conferencing apps until you reassign them in the options. It runs happily from any folder on Windows 10 or 11.

Download ZoomIt.zip from Microsoft Sysinternals on Microsoft Learn, or directly from download.sysinternals.com, and save it to your Downloads folder.

Extract the ZIP and run ZoomIt64.exe on 64-bit Windows (ZoomIt.exe covers 32-bit and ZoomIt64a.exe ARM64). There is no installer — ZoomIt places an icon in the system tray.

In the options dialog that opens on first run, confirm or change the hotkeys for Zoom, LiveZoom, Draw and Break, then press Ctrl+1 to test the live zoom and Esc to exit it.

Is ZoomIt free to use?

Yes. ZoomIt is free, Microsoft-signed and fully portable, written by Mark Russinovich and published by Microsoft Sysinternals. Version 12.3 lives quietly in the system tray with fully configurable hotkeys and needs no installation or account to use.

How to download ZoomIt?

ZoomIt is distributed by Microsoft Sysinternals as a portable ZIP: extract it and run ZoomIt64.exe on 64-bit Windows (ZoomIt.exe is also included), and it runs from the system tray. On first run it shows its options dialog and licence; after that it waits for its hotkeys, and closing the tray icon removes it completely.

What is ZoomIt used for?

Presenters, trainers and teachers use it to make a live screen legible: press Ctrl+1 and the screen magnifies around the pointer while the desktop stays live underneath, and Ctrl+2 turns the same screen into an annotation canvas with pens, shapes, arrows and typed text. It also includes a configurable break timer for classroom and conference pauses, typing and demonstration timers, and screen snipping and recording in recent versions.

What are the keyboard shortcuts for ZoomIt?

By default Ctrl+1 starts the zoom, Ctrl+4 starts LiveZoom (full-screen magnification while the display keeps updating), Ctrl+2 enters drawing mode and Ctrl+3 starts the break timer. Within drawing mode you can type text, draw shapes and switch pen colours with single keys, and Esc or a right-click exits the current mode; every hotkey can be changed in ZoomIt's options dialog.