UXPin is an online design tool that helps designers create wireframes, prototypes, and mockups. It has a wide range of features that make it easy for designers to create interactive prototypes.

UXPin helps designers gather feedback and iterate on their work in a faster, more collaborative process. It is best used for creating high-fidelity digital prototypes of any design project.

The UXPin app has the advantage of allowing designers to render their design intent directly in code rather than drawing static representations in a raster or vector design tool. As soon as the user draws the design, the tool generates the appropriate HTML/CSS/javascript code and activates the browser; the application engine then displays the results visually.

UXPin was founded by Marcin Treder, Kamil Zięba, and Marcin Kowalski in November 2008 in Gdańsk.