TL;DR: Replay lets you create production-ready React code directly from video recordings of user interfaces, solving UI problems faster and more accurately than traditional methods.
Frustrated with endless design iterations and miscommunication when building UIs? Describing complex user flows and replicating nuanced interactions can be a nightmare. What if you could simply show the desired behavior and have the code generated automatically? That's the power of behavior-driven reconstruction, and Replay is making it a reality.
Replay: Video-to-Code Revolution#
Replay leverages the power of Gemini to analyze video recordings of user interfaces and generate clean, functional React code. This isn't just screenshot-to-code; Replay understands intent by analyzing user actions and interactions within the video. This unlocks a fundamentally different approach to UI development, allowing you to:
- •Rapidly prototype complex flows: Capture a video of the desired user journey, and Replay generates the code to match.
- •Eliminate ambiguity in design specifications: Show, don't tell. Video captures nuances that static designs often miss.
- •Iterate faster based on real user behavior: Record user testing sessions and instantly translate them into code changes.
- •Onboard new developers quickly: Provide video examples of existing UI patterns, and Replay will generate the corresponding code.
Replay uses "Behavior-Driven Reconstruction" - treating the video as the source of truth. It's not just about visual elements; it's about understanding the actions that drive the UI.
How Replay Solves Common UI Problems#
Traditional UI development is often plagued by:
- •Misinterpretation of design specifications: Static mockups often lack the dynamic behavior of a real application.
- •Time-consuming manual coding: Building complex UI interactions from scratch is a repetitive and error-prone process.
- •Difficulty replicating nuanced user behavior: Capturing the subtle details of user interactions in code is challenging.
- •Slow iteration cycles: Making changes based on user feedback can be a lengthy process.
Replay directly addresses these problems by providing a faster, more accurate, and more intuitive way to create UIs. By analyzing video, Replay captures the dynamic behavior of the UI and generates code that accurately reflects the desired user experience.
Key Features of Replay#
- •Multi-page generation: Replay can handle complex, multi-page applications, generating code for entire user flows.
- •Supabase integration: Seamlessly connect your generated code to a Supabase backend for data persistence and authentication.
- •Style injection: Apply custom styles to your generated components to match your existing design system.
- •Product Flow maps: Visualize the user journey captured in the video, providing a clear overview of the application's structure.
Getting Started with Replay#
Here's a step-by-step guide to generating React code from a video using Replay:
Step 1: Capture a Video#
Record a video of the UI you want to recreate. Make sure the video clearly shows the user interactions and the desired behavior. The clearer the video, the better the generated code will be.
💡 Pro Tip: Annotate the video with voiceovers to explain the intended functionality. This helps Replay better understand the context and generate more accurate code.
Step 2: Upload to Replay#
Upload the video to the Replay platform. Replay will automatically analyze the video and extract the relevant UI elements and interactions.
Step 3: Review and Refine#
Review the generated code and make any necessary adjustments. Replay provides a visual editor that allows you to easily modify the code and see the changes in real-time.
Step 4: Integrate into Your Project#
Copy the generated React code into your project. You can then customize the code further to meet your specific requirements.
typescript// Example generated React component import React, { useState } from 'react'; const MyComponent = () => { const [count, setCount] = useState(0); const handleClick = () => { setCount(count + 1); }; return ( <div> <p>Count: {count}</p> <button onClick={handleClick}>Increment</button> </div> ); }; export default MyComponent;
📝 Note: This is a simplified example. Replay can generate much more complex components with intricate interactions.
Step 5: Connect to Supabase (Optional)#
If you're using Supabase, you can easily connect your generated code to your Supabase backend. Replay will automatically generate the necessary code to fetch and update data in your Supabase database.
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('your_table') .select('*'); if (error) { console.error('Error fetching data:', error); return []; } return data; };
Replay vs. Traditional Methods and Other Tools#
How does Replay stack up against traditional UI development methods and other code generation tools?
| Feature | Traditional Coding | Screenshot-to-Code | Low-Code Platforms | Replay |
|---|---|---|---|---|
| Input | Design Specs, Mockups | Screenshots | Drag-and-Drop UI | Video |
| Behavior Analysis | Manual Interpretation | None | Limited | ✅ |
| Code Quality | Depends on Developer | Often Inconsistent | Often Bloated | High |
| Speed | Slow | Medium | Medium | Fast |
| Learning Curve | High | Low | Medium | Low |
| Flexibility | High | Low | Medium | High |
| Understanding User Intent | Low | Low | Low | High |
⚠️ Warning: Screenshot-to-code tools can be useful for generating basic UI elements, but they often struggle with complex interactions and dynamic behavior. Replay excels in these areas.
And here's a comparison with other AI-powered UI tools:
| Feature | v0.dev | TeleportHQ | Replay |
|---|---|---|---|
| Code Generation Source | Text Prompt | Visual Editor | Video |
| Behavior Analysis | ❌ | ❌ | ✅ |
| Multi-Page Support | ✅ | ✅ | ✅ |
| Supabase Integration | Limited | ❌ | ✅ |
| Style Injection | Limited | ✅ | ✅ |
| Product Flow Maps | ❌ | ❌ | ✅ |
Addressing Common Concerns#
"How accurate is the generated code?"
Replay's accuracy depends on the quality of the input video. Clear, well-defined videos will result in more accurate code. The platform also provides a visual editor that allows you to refine the generated code and correct any errors.
"Can Replay handle complex UI interactions?"
Yes! Replay is specifically designed to handle complex UI interactions. By analyzing video, Replay can capture the dynamic behavior of the UI and generate code that accurately reflects the desired user experience.
"Is Replay suitable for production environments?"
Yes, Replay generates clean, production-ready React code that can be easily integrated into existing projects. The code is also highly customizable, allowing you to tailor it to your specific needs.
Frequently Asked Questions#
Is Replay free to use?#
Replay offers a free tier with limited features. Paid plans are available for users who need more advanced functionality and higher usage limits. Check the Replay pricing page for details.
How is Replay different from v0.dev?#
While both tools generate UI code, Replay uses video as the input source, allowing it to understand user behavior and generate more accurate and dynamic code. v0.dev relies on text prompts, which can be less precise and require more manual refinement.
What frameworks does Replay support?#
Currently, Replay primarily supports React. Support for other frameworks like Vue and Angular is planned for future releases.
Can I use Replay with my existing design system?#
Yes! Replay allows you to inject custom styles into the generated components, ensuring that they match your existing design system.
Ready to try behavior-driven code generation? Get started with Replay - transform any video into working code in seconds.