UI Builder – Mockup Tool

UI wireframes in Chrome. Drag sketch-style elements, resize, and screenshot easily. UI Builder – Mockup Tool is a fast Web Wireframe & Web Design Tool that lets you sketch UI layouts on any live page or on a new blank page. Quickly show clients possible design changes directly on the live website, without switching tools. 🔵 Built for designers, product owners, developers and business analysts who need instant mockups without leaving the page.