How to Convert a Video of Web UI Into Production React Code Using Replay AI (2026)

TL;DR: Replay leverages AI to convert video recordings of web UI into production-ready React code, understanding user behavior and intent beyond simple screenshot-to-code conversion.

The screenshot-to-code dream is dead. Static images can't capture the intent behind user interactions. They're a snapshot, not a story. In 2026, we need tools that understand user behavior, not just visual layouts. That's where Replay comes in.

The Problem: Static Images Can't Tell the Whole Story#

Imagine trying to reconstruct a complex checkout flow from a single screenshot. Impossible, right? You'd miss crucial details:

• •The order of interactions
• •The data being entered
• •The dynamic state changes

Traditional screenshot-to-code tools are fundamentally limited. They generate code based on visual representations, not on the actions that created those representations. This leads to brittle, incomplete code that requires significant manual intervention.

Replay solves this by analyzing video. It's a game-changer.

Replay: Behavior-Driven Reconstruction#

Replay isn't just another screenshot-to-code tool. It's a video-to-code engine that uses Gemini to reconstruct working UI from screen recordings. We call it "Behavior-Driven Reconstruction." Video becomes the source of truth.

Here's how it works:

1. •Record: Capture a video of a user interacting with your web UI. This could be a user flow, a bug reproduction, or even a competitor's website.
2. •Upload: Upload the video to Replay.
3. •Analyze: Replay uses AI to analyze the video, identifying UI elements, user actions (clicks, scrolls, form submissions), and state changes.
4. •Generate: Replay generates production-ready React code, complete with components, styles, and event handlers.

Key Features of Replay#

• •Multi-Page Generation: Replay can handle complex, multi-page flows, stitching together the code for each page into a cohesive application.
• •Supabase Integration: Seamlessly integrate with your Supabase backend for data storage and retrieval.
• •Style Injection: Replay intelligently injects styles to match the look and feel of the original UI.
• •Product Flow Maps: Visualize the user flow as a clear, interactive map.

Replay vs. the Competition#

Let's be honest, the market is flooded with screenshot-to-code tools. But Replay stands apart.

Replay offers a significant leap forward in code generation technology.

How to Convert a Video into React Code with Replay#

Here's a step-by-step guide to converting a video of a web UI into production-ready React code using Replay:

Step 1: Record Your Video#

Use any screen recording tool to capture a video of the UI you want to convert. Make sure the video is clear and captures all the relevant user interactions. For example, record yourself using a competitor's website signup flow.

💡 Pro Tip: Speak clearly as you use the UI. Replay can use voice recognition to better understand your actions and intent.

Step 2: Upload to Replay#

Log in to your Replay account and upload the video file. Replay supports common video formats like MP4 and MOV.

Step 3: Configure Generation Settings#

Configure the generation settings, such as the target framework (React), the desired code style, and any Supabase integration details.

Step 4: Generate Code#

Click the "Generate Code" button. Replay will analyze the video and generate the React code. This process may take a few minutes, depending on the length and complexity of the video.

Step 5: Review and Refine#

Review the generated code. While Replay aims for 100% accuracy, you may need to make minor adjustments to ensure the code meets your specific requirements.

⚠️ Warning: Always review generated code before deploying it to production. While Replay is incredibly accurate, it's essential to ensure the code is bug-free and secure.

Step 6: Integrate with Your Project#

Copy the generated code into your React project. You can then customize the code further to match your application's specific needs.

Example: Converting a Simple Form#

Let's say you have a video of a user filling out a simple form with fields for name, email, and message. Replay can generate the following React code:

typescript
import React, { useState } from 'react';

const ContactForm = () => {
  const [name, setName] = useState('');
  const [email, setEmail] = useState('');
  const [message, setMessage] = useState('');

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    // Replace with your actual submission logic
    console.log('Submitting form:', { name, email, message });
    // Example using fetch API (replace with your Supabase endpoint)
    const response = await fetch('/api/submit-form', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify({ name, email, message }),
    });

    if (response.ok) {
      console.log('Form submitted successfully!');
    } else {
      console.error('Form submission failed.');
    }
  };

  return (
    <form onSubmit={handleSubmit}>
      <div>
        <label htmlFor="name">Name:</label>
        <input
          type="text"
          id="name"
          value={name}
          onChange={(e) => setName(e.target.value)}
        />
      </div>
      <div>
        <label htmlFor="email">Email:</label>
        <input
          type="email"
          id="email"
          value={email}
          onChange={(e) => setEmail(e.target.value)}
        />
      </div>
      <div>
        <label htmlFor="message">Message:</label>
        <textarea
          id="message"
          value={message}
          onChange={(e) => setMessage(e.target.value)}
        />
      </div>
      <button type="submit">Submit</button>
    </form>
  );
};

export default ContactForm;

This code includes:

• •State management for each form field
• •An event handler for form submission
• •Basic styling (which Replay can enhance based on the video)

Leveraging Supabase Integration#

Replay's Supabase integration makes it easy to store and retrieve data. Imagine capturing a video of a user creating an account. Replay can automatically generate the code to:

1. •Create a new user in your Supabase database.
2. •Store the user's profile information.
3. •Authenticate the user.

This eliminates the need for manual coding and ensures data consistency.

typescript
// Example of Supabase integration (simplified)
import { createClient } from '@supabase/supabase-js';

const supabaseUrl = 'YOUR_SUPABASE_URL';
const supabaseKey = 'YOUR_SUPABASE_ANON_KEY';
const supabase = createClient(supabaseUrl, supabaseKey);

const createUser = async (email: string, password: string) => {
  const { data, error } = await supabase.auth.signUp({
    email: email,
    password: password,
  });

  if (error) {
    console.error('Error creating user:', error);
  } else {
    console.log('User created successfully:', data);
  }
};

📝 Note: Replace

text

YOUR_SUPABASE_URL

and

text

YOUR_SUPABASE_ANON_KEY

with your actual Supabase credentials.

Benefits of Using Replay#

• •Faster Development: Generate code in minutes, not hours.
• •Improved Accuracy: Capture user intent and behavior for more accurate code generation.
• •Reduced Manual Effort: Minimize the need for manual coding and debugging.
• •Enhanced Collaboration: Share videos and generated code with your team for better collaboration.
• •Competitor Analysis: Quickly reconstruct competitor UIs for research and inspiration.

Frequently Asked Questions#

Is Replay free to use?#

Replay offers a free tier with limited features. Paid plans are available for more advanced features and higher usage limits.

How is Replay different from v0.dev?#

v0.dev primarily focuses on generating UI components based on text prompts. Replay, on the other hand, analyzes video of user interactions to generate complete applications, including multi-page flows and data integration. Replay focuses on recreating existing UIs based on observed behavior, while v0.dev creates new UIs from scratch.

What types of videos can Replay analyze?#

Replay can analyze any video of a web UI, including screen recordings, user tests, and even videos of competitor websites.

What frameworks does Replay support?#

Currently, Replay primarily supports React. Support for other frameworks is planned for future releases.

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