Principle makes it easy to create animated and interactive user interface designs. Whether you're designing the flow of a multi-screen app, or new interactions and animations, Principle lets you create designs that look and feel amazing.



ProtoPie is described as 'The easiest tool used to turn your UI/UX design ideas into highly interactive prototypes for mobile, desktop, web, all the way to IoT' and is a Prototyping tool in the development category. There are more than 25 alternatives to ProtoPie for a variety of platforms, including Web-based, Mac, Windows, Linux and iPhone apps. The best ProtoPie alternative is Penpot, which is both free and Open Source. Other great apps like ProtoPie are Figma, Penpot Desktop, Magic Animator and Blazy.
Principle makes it easy to create animated and interactive user interface designs. Whether you're designing the flow of a multi-screen app, or new interactions and animations, Principle lets you create designs that look and feel amazing.



Pixso is the best collaboration tool that enables you to make great products as a team. You can prototype, design, and deliver code with Pixso.

Design production-ready interactive content. Design interactivity and animation on an infinite canvas with real-time collaboration. Organized on a shared workspace for your entire team.



Revolutionize your development process by bridging the gap between designers and developers to turn your design visions into production-ready UIs.




Studio.Design is the site builder for designers. The browser app is packed with design features as intuitive as Figma, a CMS as simple as Notion, and one-click publishing to your domain. Now, you can finally turn any idea into a stunning website quickly and easily.



Siter.io is a no-code website builder that allows you to design and publish websites without any code. It works by designing directly in the browser, freehand, using tools you already know.




Origami Studio is a free design tool built by Facebook designers for creating interactive UI prototypes. An elegant, layer-based interface allows designers to repaidly create prototypes with layers, build interactions and then share them with others.




Flinto for Mac is a comprehensive app prototyping tool that allows you to create anything from simple tap-through prototypes, to comprehensive prototypes with impressive interactions. We’ve carefully designed Flinto for Mac to minimize complexity.



Motiff is the UI design tool for the AI era. Get powerful Al and comprehensive design features, prototyping, Dev Mode, and an all-in-one platform.




ReacType is a visual prototyping tool for developers employing React component architecture alongside the comprehensive type checking of TypeScript. In other words, you can draw prototypes and export React / Typescript code!








All in One Prototyping Tool For Vue Developers. From Component Architecture to Code Exporting.
