TL;DR: Replay leverages video analysis and AI to automatically generate production-ready SolidJS components with animations directly from UX prototype recordings, significantly accelerating UI development.
Turning a beautiful UX prototype into functional, animated code is often a bottleneck. Manually translating designs from tools like Figma or Adobe XD into working components can be time-consuming and prone to errors. Screenshot-to-code tools offer a limited solution, lacking the understanding of user behavior and dynamic interactions. This is where Replay steps in, revolutionizing the process with behavior-driven reconstruction.
From UX Vision to SolidJS Reality#
Replay is a video-to-code engine that uses Gemini to reconstruct working UI from screen recordings. Unlike traditional methods, Replay analyzes video, not just static images, to understand user behavior and intent. This "Behavior-Driven Reconstruction" approach uses the video as the source of truth, capturing the nuances of animations, transitions, and interactive elements. The result? Production-ready SolidJS components that mirror the UX prototype's intended functionality.
The Problem with Traditional Methods#
Manually coding UI components from prototypes presents several challenges:
- •Time-Consuming: Translating designs into code is a laborious process.
- •Error-Prone: Manual coding introduces the risk of human error and inconsistencies.
- •Lack of Fidelity: Capturing animations and transitions accurately can be difficult.
- •Limited Understanding: Static designs don't convey the full user experience.
Screenshot-to-code tools offer a quicker solution, but fall short in several key areas.
| Feature | Screenshot-to-Code | Replay |
|---|---|---|
| Video Input | ❌ | ✅ |
| Animation Capture | ❌ | ✅ |
| Behavior Analysis | ❌ | ✅ |
| Multi-Page Support | Limited | ✅ |
| State Management | Basic | Advanced |
| Code Quality | Variable | High |
| Understanding Intent | ❌ | ✅ |
Replay addresses these limitations by leveraging video analysis to understand what the user is trying to achieve, not just what they see.
Building a SolidJS Component with Animation Using Replay#
Here's how you can convert a UX prototype with animations into a functional SolidJS component using Replay:
Step 1: Record Your Prototype#
Record a video of your UX prototype in action. Make sure to clearly demonstrate all the desired animations, transitions, and interactions. The clearer the recording, the better the generated code will be.
💡 Pro Tip: Speak clearly while recording, explaining the different states and interactions in your prototype. This helps Replay better understand the intended functionality.
Step 2: Upload to Replay#
Upload the video to Replay. The AI engine will analyze the video, identify UI elements, and understand their behavior. This process can take a few minutes, depending on the length and complexity of the video.
Step 3: Review and Refine#
Once the analysis is complete, Replay will present you with a generated SolidJS component. Review the code and make any necessary refinements.
typescript// Example of generated SolidJS component with animation import { createSignal, onMount, createEffect } from 'solid-js'; import styles from './AnimatedButton.module.css'; interface AnimatedButtonProps { text: string; } const AnimatedButton = (props: AnimatedButtonProps) => { const [isHovered, setIsHovered] = createSignal(false); const [scale, setScale] = createSignal(1); createEffect(() => { setScale(isHovered() ? 1.1 : 1); }); return ( <button class={styles.button} style={{ transform: `scale(${scale()})` }} onMouseEnter={() => setIsHovered(true)} onMouseLeave={() => setIsHovered(false)} > {props.text} </button> ); }; export default AnimatedButton;
📝 Note: Replay often generates modular CSS or Styled Components alongside the JavaScript/TypeScript code, ensuring a clean and maintainable codebase.
Step 4: Integrate into Your Project#
Copy the generated SolidJS component into your project and integrate it into your application. You may need to adjust the styling or functionality to perfectly match your design system.
Replay's Key Advantages#
Replay offers several key advantages over traditional methods and other code generation tools:
- •Video-Driven: Analyzes video to understand user behavior and intent.
- •Animation Capture: Accurately captures animations and transitions.
- •Multi-Page Generation: Supports generating code for multi-page applications.
- •Supabase Integration: Seamlessly integrates with Supabase for backend functionality.
- •Style Injection: Injects styles directly into the generated code.
- •Product Flow Maps: Creates visual representations of user flows.
Addressing Common Concerns#
⚠️ Warning: While Replay significantly accelerates UI development, it's not a replacement for skilled developers. The generated code may require refinement and optimization to perfectly match your project's requirements.
Some common concerns regarding AI-powered code generation include:
- •Code Quality: Replay generates high-quality, production-ready code that adheres to best practices.
- •Customization: The generated code is fully customizable, allowing you to tailor it to your specific needs.
- •Accuracy: Replay's behavior-driven reconstruction ensures a high degree of accuracy in capturing the intended functionality.
- •Complexity: Replay can handle complex animations and interactions, generating code that accurately reflects the prototype's behavior.
| Consideration | Replay's Approach |
|---|---|
| Code Quality | Generates clean, well-structured code. |
| Customization | Code is fully editable and extendable. |
| Accuracy | Behavior-driven analysis ensures high fidelity. |
| Complexity | Handles intricate animations and interactions. |
Frequently Asked Questions#
Is Replay free to use?#
Replay offers a free tier with limited usage. Paid plans are available for more extensive use and advanced features. Check the Replay pricing page for the latest details.
How is Replay different from v0.dev?#
While both tools aim to accelerate UI development, Replay distinguishes itself by analyzing video input rather than relying on static screenshots or text prompts. This allows Replay to capture complex animations and user interactions, resulting in more accurate and functional code generation. v0.dev excels at generating UI components based on text descriptions, but lacks the ability to directly translate visual prototypes into code with the same level of fidelity as Replay.
What frameworks does Replay support?#
Currently, Replay supports SolidJS, React, and Vue.js. Support for additional frameworks is planned for future releases.
What type of videos can I use with Replay?#
Replay can analyze screen recordings of UX prototypes created in tools like Figma, Adobe XD, Sketch, and others. The video should clearly demonstrate the desired functionality and animations.
Ready to try behavior-driven code generation? Get started with Replay - transform any video into working code in seconds.