Thief is a cross-platform desktop application designed to conceal leisure activities within work-like interfaces. It functions as a workplace privacy tool that disguises content such as novels, videos, games, and web pages as professional applications like code editors, spreadsheets, or taskbar panels, allowing users to appear productive while engaging in personal browsing.
The application distinguishes itself through camera-aware proximity detection, which uses the device's camera to monitor surroundings and automatically hide the window when someone approaches. A configurable hotkey provides instant window concealment, while window-opacity blending allows the application to overlay content onto the desktop background for visual camouflage. Multiple disguise modes are available, including a simulated code editor, taskbar integration, and MacBook Touch Bar support, each designed to mask personal activity as legitimate work.
Thief supports a wide range of content types, including web browsing, video playback, PDF viewing, game playing, and novel reading, all within its disguised interface. It integrates with platforms like WeRead for book access and can display real-time stock data. The application is built on a plugin-based content engine and an embedded WebView, enabling it to load diverse content formats while maintaining its concealment capabilities.