How to Build Your Own Principle
Replace Principle with a custom build. Design interactive prototypes with motion and logic
Build Difficulty: 5/5
Build a working replacement in a weekend with AI tools
Estimated Timeline
Based on 42 features at Weekend Project difficulty, expect about One weekend with AI-assisted development.
Recommended Tech Stack
Full-stack React framework with API routes and server components
PostgreSQL database, auth, and real-time subscriptions
Utility-first styling for rapid UI development
Key Features to Replicate
Top features across 8 categories. See all 42 features
Design(15 features)
Create multiple artboards for different screens, flows, or breakpoints.
Apply Photoshop-style blend modes for advanced visual effects.
Advanced color selection with palette management and accessibility checking.
Reusable components with master-instance relationships for consistent design systems.
Design and preview prototypes in both light and dark themes.
+10 more in this category
Interaction(6 features)
Add logic flows to trigger different interactions based on user actions.
Connect variables and data sources to dynamic prototype elements.
Drag and drop interactions for intuitive mobile and touch designs.
Support for swipe, tap, long-press, and pan interactions in prototypes.
Design smooth transitions between multiple pages in prototype flows.
+1 more in this category
Animation(5 features)
Create custom animation curves with bezier easing controls.
Create smooth animations and transitions with keyframe-based timeline editing.
Create depth with multi-layer parallax scrolling animations.
Automatically create animations between similar layers on different artboards.
Frame-by-frame animation control with easing functions and playback options.
Testing(4 features)
Preview prototypes on real iOS or Android devices via companion app.
Visual inspector showing all interactions and logic flows in your prototype.
iOS app for previewing and testing prototypes on real devices.
Monitor frame rates and performance metrics during prototype playback.
Collaboration(3 features)
Share interactive prototypes with stakeholders via sharable links.
Add comments to designs for team feedback and collaboration.
Track changes and revert to previous versions of your designs.
Export(3 features)
Export designs and assets in multiple formats including PNG, SVG, PDF.
Generate design documentation with specifications and interaction details.
Export animations and interactions as video files for presentations.
Productivity(3 features)
Customizable keyboard shortcuts for faster workflow and productivity.
Search and replace text, colors, or font properties across designs.
Unlimited undo and redo functionality with edit history.
Integration(2 features)
Import designs from Figma to extend with advanced interactions.
Import Sketch files directly into Principle for prototyping.
Cost Calculator
Pricing data not available for Principle. Check their website for current pricing.