UX prototyping tools to craft interactive experiences

Craft seamless user experiences with Lunacy's powerful UX prototype tools - completely FREE both personally or commercially. Build interactive mockups, evaluate user flows, plus collaborate in real-time whether you're on Windows, macOS, or Linux platforms.

Lunacy UX Prototyping Tool Interface

How to create UX prototypes with Lunacy

Step 1

Design your screens and UI elements

Build interface screens using Lunacy's powerful vector editing features, components, alongside built-in UI kits to establish a solid foundation.

Step 2

Add interactive elements and connections

Apply hotspots to develop interactive areas plus establish connections between screens, defining user flows along with navigation paths.

Step 3

Preview, test, and share your prototype

Evaluate interactive mockups directly in Lunacy, make adjustments, then share with stakeholders to gather feedback or conduct user testing.

Interactive prototyping with intuitive connections

Develop dynamic user flows using Lunacy's intuitive UX prototype tools. Define interactions through hotspots, connections, plus animations to simulate real-world experiences. Easily configure triggers like clicks, hovers, or drags to evaluate different interaction models without writing a single line of code.

Lunacy's interactive prototyping interface

Built-in UI kits and prototype templates

Access Lunacy's extensive library of UI kits alongside prototype templates to speed up UX creation. Choose from professionally crafted components specifically developed for rapid prototyping. These ready-to-use elements help maintain consistency while letting you focus on delivering exceptional user experiences.

Lunacy's UI kit and prototype templates

Real-time collaborative prototyping

Work together with teammates on interactive mockups regardless of their operating system. Lunacy's cloud-based collaboration enables designers, developers, plus stakeholders to function as one cohesive unit. Leave comments, make adjustments, or iterate on UX prototypes collectively to refine overall quality.

Collaborative prototyping in Lunacy

More powerful UX prototyping capabilities

Advanced animation and transition effects

Develop fluid, realistic prototype animations using Lunacy's extensive transition library. Select from slide, dissolve, push, among others to accurately simulate how finished products will behave. Customize timing, easing, or duration to perfect every micro-interaction in UX design prototyping tools.

Component-based design system

Construct scalable mockups through Lunacy's component system. Establish reusable UI elements that maintain consistency while enabling quick global updates. Define component states, build nested elements, or manage overrides to simulate complex interactive behaviors in this top-rated UI design tool for prototyping.

Cross-platform prototype testing

Evaluate UX prototypes across different devices directly within Lunacy. Preview how designs will appear on various screen sizes or operating systems. Ensure consistent experiences across desktop, tablet, plus mobile devices without requiring additional user experience prototyping tools.

Frequently asked questions about UX prototyping tools

What UX designers say about Lunacy

Join thousands of UX professionals creating interactive prototypes with our free software.
  • After trying numerous UX prototyping tools, I've settled on Lunacy for all my projects. The ability to build complex interactive mockups without monthly fees is revolutionary. The hotspot connections feel natural, while transition animations look professional. I collaborate with my team across different systems, plus clients always seem impressed with final results.

    Michael D., Senior UX Designer
  • Lunacy has transformed our workflow completely. The component system helps maintain consistency throughout complex UX design prototyping tools, while real-time collaboration allows our entire team to contribute simultaneously. We've eliminated costly software subscriptions yet actually improved our mockup fidelity alongside testing capabilities. Their built-in UI kits save us countless hours too.

    Jasmine L., Product Designer
  • For user testing, Lunacy's UX prototype tools work perfectly. I quickly develop interactive flows, share them with participants, then iterate based on feedback—all without budget concerns. The cross-platform support means testing on any device becomes simple, while cloud sharing makes distributing mockups to participants effortless. It's become essential in our research toolkit.

    Thomas R., UX Researcher