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January 17, 20267 min readGenerating UI Design

Generating UI Design Inspiration from Video

R
Replay Team
Developer Advocates

TL;DR: Stop staring at static design mockups; unlock dynamic UI inspiration by reverse-engineering user behavior captured in video with Replay.

The design process is broken. We're stuck iterating on static mockups, guessing at user intent, and building UIs that often miss the mark. The problem? We're designing in a vacuum, divorced from the actual user experience. What if you could see how users interact with a successful UI and then automatically translate that behavior into code? That's the power of behavior-driven reconstruction.

Ditch the Mockups: Embrace Dynamic UI Inspiration#

The traditional UI design workflow relies heavily on static prototypes. Tools like Figma and Sketch are fantastic for creating visual representations, but they lack the crucial element of user interaction. You're essentially building a house based on blueprints without ever seeing how people actually live in it. This leads to:

  • Assumptions, not insights: Design decisions are often based on best guesses rather than concrete data.
  • Limited scope: Static mockups can't capture the nuances of user behavior across multiple pages or complex flows.
  • Wasted development time: Implementing designs that ultimately need to be reworked based on user feedback.

Instead of relying solely on static designs, we need to tap into the rich source of information contained in video. Imagine being able to watch a user seamlessly navigate a competitor's application, then automatically translate that flow into functional code. This is where Replay comes in.

Replay: Video-to-Code is the Future#

Replay is a revolutionary video-to-code engine that uses Gemini to reconstruct working UI from screen recordings. Unlike screenshot-to-code tools, Replay understands what users are trying to do, not just what they see. It leverages Behavior-Driven Reconstruction, treating video as the source of truth. This allows you to:

  • Extract UI inspiration from real user behavior: Analyze videos of successful applications and understand the underlying interaction patterns.
  • Generate multi-page applications automatically: Replay can reconstruct entire user flows, not just individual screens.
  • Accelerate development: Turn video inspiration into working code in seconds, saving countless hours of manual coding.

Here's how Replay stacks up against traditional methods and other code generation tools:

FeatureScreenshot-to-CodeTraditional MockupsReplay
Video Input
Behavior Analysis
Multi-Page GenerationLimitedManual
Code QualityBasicManualHigh
Supabase IntegrationLimitedManual
Style InjectionBasicManual
Product Flow MapsManual

💡 Pro Tip: Focus on videos of successful applications in your niche. Analyze what makes them work and use Replay to adapt those patterns to your own project.

Building a UI from Video: A Step-by-Step Guide#

Let's walk through a practical example of using Replay to generate UI design inspiration from video. Imagine you're building a task management application and want to emulate the smooth drag-and-drop functionality of a popular competitor.

Step 1: Record the User Flow#

Record a video of yourself (or a user) interacting with the target application. Focus on capturing the specific UI elements and user flows you want to replicate. Ensure the video is clear and stable.

Step 2: Upload to Replay#

Upload the video to the Replay platform. Replay will automatically analyze the video and identify the key UI elements and user interactions.

Step 3: Review and Refine#

Review the generated code and product flow map. Replay provides a visual representation of the user flow, allowing you to easily identify and modify specific interactions.

Step 4: Customize and Integrate#

Customize the generated code to fit your specific needs. Replay supports style injection, allowing you to easily apply your own branding and design preferences. Integrate the code into your existing project.

Here's a simple example of the type of code Replay can generate:

typescript
// Generated code for drag-and-drop functionality import { useState } from 'react'; import { useDrag, useDrop } from 'react-dnd'; const TaskItem = ({ task, index, moveTask }) => { const [{ isDragging }, drag] = useDrag({ type: 'TASK', item: { id: task.id, index }, collect: (monitor) => ({ isDragging: monitor.isDragging(), }), }); const [{ isOver }, drop] = useDrop({ accept: 'TASK', hover: (item, monitor) => { if (!item || !task) return; const dragIndex = item.index; const hoverIndex = index; if (dragIndex === hoverIndex) return; moveTask(dragIndex, hoverIndex); item.index = hoverIndex; }, collect: (monitor) => ({ isOver: monitor.isOver(), }), }); return ( <div ref={drop(drag(document.createElement('div')))} style={{ opacity: isDragging ? 0.5 : 1 }}> {task.name} </div> ); }; export default TaskItem;

📝 Note: Replay can generate code in various frameworks, including React, Vue, and Angular.

Step 5: Iterate and Improve#

Continuously iterate on the design based on user feedback and further video analysis. Replay makes it easy to refine the UI and optimize the user experience.

Beyond Code: Understanding User Intent#

Replay goes beyond simply generating code; it helps you understand the why behind user behavior. By analyzing video, you can gain valuable insights into:

  • User pain points: Identify areas where users struggle or get frustrated.
  • Successful interaction patterns: Discover what works well and replicate those patterns in your own application.
  • Hidden features: Uncover undocumented features or workflows that users are leveraging.

This deeper understanding of user intent allows you to create more intuitive and engaging UIs.

⚠️ Warning: Always respect intellectual property rights. Use Replay to learn from existing applications, but avoid directly copying copyrighted material. Focus on adapting successful patterns to your own unique design.

Replay Integrations: Supercharging Your Workflow#

Replay seamlessly integrates with popular development tools and platforms, including:

  • Supabase: Easily connect to your Supabase database and generate code that interacts with your data.
  • GitHub: Streamline your development workflow by automatically committing changes to your GitHub repository.
  • Figma: Import designs from Figma and use Replay to generate the corresponding code.

These integrations make Replay a powerful addition to any developer's toolkit.

typescript
// Example of Supabase integration import { createClient } from '@supabase/supabase-js'; const supabaseUrl = 'YOUR_SUPABASE_URL'; const supabaseKey = 'YOUR_SUPABASE_ANON_KEY'; const supabase = createClient(supabaseUrl, supabaseKey); const fetchData = async () => { const { data, error } = await supabase .from('tasks') .select('*'); if (error) { console.error('Error fetching data:', error); } else { console.log('Data from Supabase:', data); } }; fetchData();

Frequently Asked Questions#

Is Replay free to use?#

Replay offers a free tier with limited functionality. Paid plans are available for more advanced features and higher usage limits. Check the Replay pricing page for details.

How is Replay different from v0.dev?#

While both tools aim to accelerate UI development, Replay focuses on behavior-driven code generation from video, offering deeper insights into user intent and the ability to reconstruct complex, multi-page applications. v0.dev primarily uses text prompts and existing UI libraries to generate code. Replay is better for reverse engineering real-world user experiences, while v0.dev is better for rapidly prototyping from scratch.

What types of videos work best with Replay?#

Clear, stable videos with well-defined UI elements work best. Focus on capturing the specific user flows you want to replicate. High-resolution videos are recommended.

Can Replay generate code for mobile applications?#

Yes, Replay supports video analysis and code generation for both web and mobile applications.

What programming languages and frameworks does Replay support?#

Replay currently supports React, Vue, and Angular, with plans to add support for more languages and frameworks in the future.


Ready to try behavior-driven code generation? Get started with Replay - transform any video into working code in seconds.

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