Sketch is an effective and intuitive tool that you can use to create prototypes of web projects. You can use the UI and UX software to create dynamic user interfaces for websites and apps. A key advantage: as the designs are based on web design rules, you hand over a directly implementable result to development. Get to know Sketch in this five-hour tutorial by Luca Kiedrowski, which takes you from concept to prototype to a fully designed web interface.
Google and Apple also rely on Sketch - do it like the big boys and learn now how to create simply beautiful, user-friendly and, on top of that, development-ready UI designs.