WindowTop is a powerful Windows window manager and productivity tool that lets you keep any window always on top, create floating Picture-in-Picture (PiP) windows, adjust window opacity and transparency, and easily manage multiple windows with Anchors.
Whether you want to overlay transparent windows while working, watch videos while gaming, or reduce eye strain with Dark Mode, WindowTop gives you full control over your Windows desktop multitasking. Start using it for free and unlock advanced features with the Pro version!

Always on Top – Keep Windows Visible While You Work
Keep any window always on top of others and highlight it with a customizable colored border. Easily adjust frame color, thickness, and behavior from the Always on Top settings — perfect for multitasking, monitoring apps, or staying focused while working.
Anchors – Instantly Access Windows with One Click
Need faster access to your windows? Anchors let you instantly bring windows to focus with a single click — faster than ALT+TAB and perfect for touchscreens. Instead of keeping windows always on top, use Anchors to quickly reopen minimized or background windows.
Anchors automatically avoid covering text or images by smartly repositioning themselves on your screen.

Picture-in-Picture (PiP) & Crop — Watch and Work with Any Window
Easily watch videos or monitor any window while working using Picture-in-Picture (PiP) mode. You can interact directly with PiP windows, keep them floating above your work, and even crop specific areas of the window to focus only on what matters.
Auto-Move for PiP – Stay Focused, Avoid Distractions
Picture-in-Picture mode includes an Auto-Move feature that intelligently repositions the window to avoid covering important text or images on your screen.
Opacity Control – See Through Windows While You Work
Adjust window transparency to see background content while working. Opacity Control lets you overlay windows, compare designs, write code, or follow tutorials without constantly switching windows.
Opacity with Click-Through – Work Seamlessly Over Transparent
Enable click-through on transparent windows to interact directly with content behind them. Perfect for designers, artists, or anyone tracing, copying, or referencing elements on screen.


Dark Mode – Reduce Eye Strain at Night
Switch to Dark Mode and reduce screen brightness when working at night or in low-light environments. Apply dark theme even for apps or windows that don’t natively support it.
Note: Stable on Windows 11. May be unstable on Windows 10.
Glass Mode – Smart Transparency with Adjustable Blur
Glass Mode offers advanced transparency control, allowing you to separately adjust opacity for window backgrounds, text, and images. Customize the blur level for a modern, glass-like visual effect. Optimized for NVIDIA GPUs with CUDA acceleration.
Note that this may work slowly on 4K and will work better for NVIDIA GPUs (make use of CUDA feature)
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