Peek

Peek is a native Mac app that brings frequently checked information into a personal overlay. Hold a shortcut to glance at it, release to return to your work, or tap the shortcut to keep it open and interact. Combine websites, local PDFs, and widgets such as Calendar, Reminders, and time zones in one space. Arrange and resize content freely, or use Flow mode to organize your layout. Hide unwanted page elements and block ads, trackers, and cookie banners. Set custom keyboard shortcuts, including separate left and right modifier keys. Peek works across multiple monitors and full-screen spaces, with per-display layouts or synced widgets. Optional auto-refresh keeps pages current, and you can open content in its default app when you want to continue outside the overlay. The site also lists passkey support and experimental web extensions. Use it to check analytics beside your calendar, review GitHub pull requests and Linear issues while coding, or gather visual references from websites without switching away from your current app. Available free on the Mac App Store. Requires macOS 14.2 or later.