Software Alternatives, Accelerators & Startups

Principle

Principle makes it easy to create animated and interactive user interface designs.

Some of the top features or benefits of Principle are: User-Friendly Interface, Powerful Animation Features, Responsive Preview, Import from Sketch and Figma, and High-Fidelity Prototyping. You can visit the info page to learn more.

Best Principle Alternatives & Competitors in 2025

The best Principle alternatives based on verified products, community votes, reviews and other factors.
Filter: 12 Open-Source Alternatives. Latest update:

  1. 65

    ProtoPie is the easiest tool used to turn your UI/UX design ideas into highly interactive prototypes for mobile, desktop, web, all the way to IoT.

    Key ProtoPie features:

    Free Trial Easy to Set-up and use Integrations

    paid Free Trial $13.0 / Monthly

    /protopie-alternatives
  2. 57

    Adobe XD is an all-in-one UX/UI solution for designing websites, mobile apps and more. .

    Key Adobe XD features:

    User Interface Integration with Adobe Ecosystem Prototyping and Animation Collaboration Tools

    /adobe-xd-alternatives
  3. RealityMAX is the AI-powered 3D design collaboration platform, 100% online. Cooperate remotely with your colleagues on 3D projects and easily share your work with clients. Create Web3D and AR experiences in a snap, without a line of code.

    Key RealityMAX features:

    AI image enhancer Upload multiple 3D models Edit 3D model materials Change 3D model texture

    Visit website freemium $40.0 / Monthly (Pro with up to 500 GB of storage space)

    Visit website
  4. 53

    Design is really about solving problems. UXPin is the UX Design Platform that gets that right.

    Key UXpin features:

    Collaborative Design Usability Testing Rich Interactive Prototypes Design Libraries

    /uxpin-alternatives
  5. 39

    The most powerful way to plan, prototype and hand off to developers, all without code. Download a free trial and see why professionals choose Axure RP 9.

    Key Axure features:

    Advanced Prototyping Capabilities Collaboration Features Integrations Extensive Documentation and Training Resources

    /axure-alternatives
  6. 47

    Team-based interface design, Figma lets you collaborate on designs in real time.

    Key Figma features:

    Real-time Collaboration Cloud-Based Cross-Platform Prototyping and Design in One Tool

    /figma-alternatives
  7. 40

    A super easy wireframing tool with all the other tools you need in the product design process.

    Key MockFlow features:

    Ease of Use Collaboration Features Templates and Components Integration with Other Tools

    freemium $14.0 / Monthly (1 Editor)

    /mockflow-alternatives
  8. 55

    Design interactive UI prototypes for modern interfaces.

    Key Origami Studio features:

    Native Components Free to Use Comprehensive Animation Tools Integration with Other Tools

    /origami-studio-alternatives
  9. 48

    The most stunning HTML5 app for creating resolution-independent SVG mockups, wireframes & interactive prototypes for your next project.

    Key Moqups features:

    Ease of Use Collaboration Features Flexibility Integrations

    /moqups-alternatives
  10. 39

    Balsamiq. Rapid, effective and fun wireframing software.

    Key Balsamiq features:

    User-Friendly Interface Rapid Prototyping Low-Fidelity Focus Collaboration Features

    /balsamiq-alternatives
  11. 37

    Mockplus is a desktop-based prototyping tool.

    Key Mockplus features:

    Ease of Use Speed Collaboration Rich Component Library

    /mockplus-alternatives
  12. 31

    HTML5 all-in-one mockup & prototyping tool that exports completed interfaces to working HTML + Javascript.

    Key UX-App features:

    Visual Editor Interactive Prototypes Real-time Collaboration Integration Capabilities

    /ux-app-alternatives
  13. 46

    Wireframing and prototyping with webbased HotGloo. Create interactive, responsive wireframes for web and mobile. Includes 15-day free trial!

    Key HotGloo features:

    User-Friendly Interface Real-Time Collaboration Extensive Widget Library Cross-Platform Compatibility

    /hotgloo-alternatives
  14. 36

    Prototyping and collaboration for design teams.

    Key Invision features:

    Collaborative Features Prototyping Integrations User Testing

    /invision-alternatives
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