Screenshot Capture is a free and open-source Chrome extension that allows users to easily capture and save screenshots. It offers various features such as secure design, capturing the viewport, cropping and saving screenshots, configurable keyboard shortcuts, and saving screenshots as PNG or JPG files. It also provides options to copy screenshots to the clipboard as a data URL string or binary image. The extension is compatible with Retina and other HDPI displays. It requires no special permissions and has full documentation available on GitHub.