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.
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Open-Source Alternatives.
Latest update:
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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
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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
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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
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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
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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
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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
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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
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Design interactive UI prototypes for modern interfaces.
Key Origami Studio features:
Native Components Free to Use Comprehensive Animation Tools Integration with Other Tools
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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
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Balsamiq. Rapid, effective and fun wireframing software.
Key Balsamiq features:
User-Friendly Interface Rapid Prototyping Low-Fidelity Focus Collaboration Features
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Mockplus is a desktop-based prototyping tool.
Key Mockplus features:
Ease of Use Speed Collaboration Rich Component Library
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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
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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
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Prototyping and collaboration for design teams.
Key Invision features:
Collaborative Features Prototyping Integrations User Testing
Principle discussion
