ScreenMark Desktop for Windows

Press a hotkey.
Keep it on this PC.

A tiny tray app that captures your screen to the Windows clipboard. Screenshots stay on this PC — they are not sent to the ScreenMark website.

Download for Windows

Windows 10/11 · 64-bit · free

Version 0.4.6 · Released Sep 26, 2026 · 2.4 MB

Not on Windows? The web editor works in any browser — just paste a screenshot.

What it does

Everything between “I need a screenshot” and “here’s the marked-up version”.

One hotkey

Press Ctrl + Alt + S from any app. Change the shortcut anytime, and let it start with Windows so it’s always waiting in the tray.

Five ways to capture

Grab the whole primary screen, pick a monitor, drag a region, capture a scrolling page, or grab just the active window.

Opens ready to edit

Hotkey capture opens the editor on this PC with the screenshot already pasted — no extra copy step.

Desktop edits stay private

Markup you make in the Windows app stays on this PC. Export copies locally and is not saved to ScreenMark cloud history. A new capture auto-saves unsaved work to History on this PC only.

Primary screen
Pick a monitor
Drag a region
Scrolling page
Active window

Region capture

Desktop capture tools

When you drag a region, two overlays help you hit the right pixel — not the one next to it.

ScreenMark Desktop region overlay with full-screen alignment hairlines, a pixel loupe, and a drag-to-select tip

Alignment hairlines

Full-screen vertical and horizontal guides follow your cursor so you can line up a table edge, UI boundary, or object before you drag.

ScreenMark Desktop pixel loupe close-up showing a magnified grid, crosshair, coordinates, and color hex

Pixel loupe

A magnified pixel grid sits under the cursor, with coordinates and the color hex, so you can place the region on an exact pixel.

Install in a minute

No admin rights needed.

  1. 1

    Download the installer

    Get ScreenMarkDesktop-Setup.exe (about 1.5 MB).
  2. 2

    Run it

    It installs for your Windows user only, so it doesn’t ask for an administrator password. If your PC is missing Microsoft’s WebView2 runtime (it’s built into Windows 11), the installer fetches it for you.
  3. 3

    Press the hotkey

    ScreenMark Desktop lives in the system tray. Press Ctrl + Alt + S to capture, or click the tray icon to choose a capture mode and change settings. The screenshot is copied to your clipboard and stays on this PC.

Seeing “Windows protected your PC”?

ScreenMark Desktop isn’t code-signed yet, so Microsoft SmartScreen doesn’t recognise the publisher. Click More info, then Run anyway. Signed builds are planned, and this step will go away. If your organisation blocks unsigned apps, see For IT / managed PCs.

For IT / managed PCs

What to know before rolling it out.

Current-user install, no admin

Installs to %LOCALAPPDATA%\Screen Mark Desktop for the signed-in user. No elevation, services, or drivers.

Silent install

It’s an NSIS installer, so the standard /S flag works:ScreenMarkDesktop-Setup.exe /S

Requires WebView2

The Microsoft Edge WebView2 runtime ships with Windows 11 and current Windows 10. If it’s missing, the installer downloads it from Microsoft, or you can pre-install the Evergreen runtime.

Offline installer

For PCs without internet access, an offline installer that bundles WebView2 (about 207 MB) is available on request — contact us.

Hosts to allowlist

  • screen-mark.com — the editor
  • github.com, objects.githubusercontent.com, release-assets.githubusercontent.com — downloads and updates

Hotkey conflicts

If a policy or another app already uses Ctrl + Shift + S, pick a different shortcut in the app’s settings. The app flags shortcuts that are already taken.

Not code-signed yet

Environments that only allow signed executables (AppLocker, WDAC) need an exception for now. Signed builds are planned.

FAQ

Is there a Mac version?

Not yet. ScreenMark Desktop is Windows-only for now. The web editor works in any modern browser on Mac — paste a screenshot with Cmd + V.

How do I uninstall it?

Open Settings → Apps → Installed apps, find Screen Mark Desktop, and choose Uninstall. Your settings are kept unless you tick “Delete the application data”.

Does the desktop app upload my screenshots?

No. Hotkey capture opens the editor on this PC and pastes the screenshot so you can mark it up immediately. Export copies locally and does not save to ScreenMark cloud history. If you capture again with unsaved work on the canvas, that previous canvas is stored in History on this PC only — not uploaded. Using the website in a normal browser is separate and can save history there.

How do I capture a long scrolling page?

Choose Scrolling page from the tray menu, or set it as the default capture mode. Drag the area of the page that scrolls — the document, not the address bar or a sticky header. ScreenMark scrolls that area and stitches it into one tall screenshot, then opens the editor. Press Esc to finish with what it has so far. Desktop only; the web editor cannot capture your screen.

How do updates work?

The app updates itself. When a new version is ready, you’ll be asked before it restarts, so you won’t lose a capture mid-edit.

Release notes

By downloading, you agree to the Terms of Use and Privacy Notice.

Questions or feedback?

Installer issues, offline builds, or anything else — send a message and we'll get back to you.