Lightscreen for Windows

Quick summary

Lightscreen is a lightweight, free, open-source screen capture program for Windows developed by Christian Kaiser (also known as ckaiser). It emphasizes a clean, minimal user experience and is suitable for people who want a fast, no-frills way to take screenshots. A portable build is available for users who prefer not to install the app.

How the interface works

The app uses a compact, taskbar-style floating window so tools are always within easy reach. A system tray icon provides quick access to capture functions, upload features, and the save location. By default, screenshots are stored in Documents/Screenshots, but this can be changed in the options.

Capture modes

• Region capture: draw a selection to capture only a portion of the screen; you can refine the selection by dragging the edges after creating it.
• Window capture: target a specific application window to grab just that program’s contents—useful for single-app screenshots.
• Full-screen capture: take a snapshot of the entire display in one click, ideal for capturing everything visible at once.

All three modes can also be triggered from the tray menu.

Settings, naming and hotkeys

In the settings panel you can set custom filename patterns, enable timestamps on saved images, configure the destination folder, and assign keyboard shortcuts to speed up captures. Upload options and other advanced preferences are available from the same menu.

Limitations and recommendation

Lightscreen deliberately focuses on speed and simplicity, so it lacks an integrated image editor for quick annotations or cropping after capture. If you need a very lightweight, easy-to-use screenshot tool with flexible saving and hotkey support, Lightscreen is a solid choice — especially since it’s free and open-source.