Ui validate is a free Chrome add-on developed by DraganD that falls under the category of Browsers and subcategory of Add-ons & Tools. This tool aims to assist users in validating the implementation of design based on a design image.

With Ui validate, users can easily create and test pixel-perfect design implementation. The extension is currently in its initial stage and is available for free. To use it, simply navigate to the tab where the website or application is located, and upload the design image in either PNG or JPG format. After clicking on the "Preview Image" button, the design image will be overlaid on the design implementation, allowing users to identify any inaccuracies or deviations.

It is important to note that the extension currently only works on screen sizes for which the design is specifically made. For example, if the design is created for a screen width of 1920px, the application needs to be opened in that dimension. However, the developers have mentioned that future versions of Ui validate will include enhancements to make it more adaptable to different screen sizes.

Ui validate is a useful tool for designers and developers who need to ensure the accuracy of their design implementation. With its simple and intuitive interface, users can easily validate their designs and identify any deviations, ultimately helping them achieve pixel-perfect results.