DockDoor for Mac

Quick summary

DockDoor is a free macOS utility that helps you glance at windows hidden behind others without switching focus. It provides a lightweight, unobtrusive way to monitor background apps and documents, letting you stay on top of multiple tasks without interrupting your workflow.

Primary advantages

• Lets you preview obscured windows instantly so you can check content without changing the active app.
• Simple controls and a clean interface make it easy to use for both casual users and professionals.
• Customizable behavior so you can tweak how and when previews appear to match your habits.
• Helps speed up multitasking — ideal when juggling several projects or tracking important files.

Personalization and setup

DockDoor installs quickly and exposes a small set of preferences for tailoring its behavior. You can adjust which windows respond to the peek action, set keyboard or mouse triggers, and change the preview opacity and size. The defaults are sensible, but a few tweaks let you make the tool feel native to your routine.

Typical scenarios where it helps

• Monitoring a document or chat thread while working in another full-screen app.
• Comparing information between two windows without switching back and forth.
• Keeping an eye on notifications, timers, or live data while you remain in your primary workspace.

Alternatives worth considering

• CheatSheet — free, handy for viewing keyboard shortcuts and boosting productivity.
• Witch — paid option that offers advanced window-switching and organization features.