ResizeWizard is a Chrome add-on designed to streamline the process of resizing browser windows, making it an essential tool for developers, designers, and testers. With quick presets for various resolutions including HD, Full HD, and mobile sizes, users can adjust their viewport dimensions with just a click. The tool also allows for custom sizes, enabling users to input specific dimensions and save up to five custom settings in the free version. The live size overlay feature provides real-time feedback on window dimensions, enhancing the testing experience.

In addition to its core functionalities, ResizeWizard offers a docked panel that remains accessible for easy resizing and a unique rotate viewport feature that allows instant switching between portrait and landscape modes. The add-on prioritizes user privacy, storing settings locally without any data collection or tracking. With both free and pro versions available, ResizeWizard caters to a wide range of users needing precise control over their browsing experience.