Sites and apps similar to Mockup Builder include Pencil Project, which is free and open source. Other options are Lucidchart, Napkins.dev, Frame0 and Balsamiq Wireframes. You're spoiled for choice with Prototyping Tools like Mockup Builder: we list more than 25 alternatives for Windows, Mac, Linux, iPhone and iPad.
Local-first desktop tool for creating and editing design sketches using .wiremagic files, supporting flowcharts, Balsamiq BMPR import, fast wireframe generation, full control on macOS and Windows, built-in AI help, export options, and browser-based sharing.
United States
Create 3D device mockups, App Store screenshot sets and music-synced launch trailers for your app — right in the browser, or by asking your AI.
Germany
EU
Upload your designs,mockups or wireframes and organize them in projects. Share them with friends, colleagues and clients to get point specific Feedback. Giving Design Feedback is easy possible without any registration by your customers.
Famous is a design tool that allows you to create and publish live progressive web apps. It's the only tool in the market that lets designers generate a live experience without needing to know any code and without needing any engineers.
United States
Mockups for Android is a vector-based sketch wireframing tool for web site prototyping and creating UI design concepts. With Mockups for Android, you can experiment with concepts and sketch visual prototypes in minutes on your Android tablet or phone!
United States
Prototype cheaply and quickly for iPad, iPhone, Android, Windows Phone 7, Facebook and web using Apple Keynote, Microsoft PowerPoint or OpenOffice Impress.
