Replay AI for Creating Interactive Prototypes in Minutes: The video to code shortcut.

TL;DR: Replay AI revolutionizes interactive prototyping by generating working UI code directly from screen recordings, enabling rapid iteration and development.

Stop Mocking, Start Replaying: Building Prototypes from Video#

Creating interactive prototypes is often a tedious, time-consuming process. Developers and designers spend countless hours translating static mockups and user flows into functional code. Existing screenshot-to-code tools offer limited help, focusing on visual elements rather than understanding user intent. The result? Prototypes that look right but don't feel right, requiring extensive manual tweaking.

Replay changes the game. By leveraging advanced video analysis powered by Gemini, Replay reconstructs working UI directly from screen recordings. It's not just about pixels; it's about understanding user behavior and the underlying application logic. This "behavior-driven reconstruction" drastically reduces development time and leads to more intuitive, user-centric prototypes.

Why Video? The Power of Behavior-Driven Reconstruction#

Traditional prototyping methods rely on static designs and manual coding, often missing crucial interaction details. Video, on the other hand, captures the dynamic nature of user behavior, providing a richer source of information.

Replay uses this video data to:

• •Understand user intent: Identify the goals and motivations behind each interaction.
• •Reconstruct UI elements: Generate accurate and functional code representations of the UI components.
• •Capture application logic: Infer the underlying state management and data flow.
• •Map product flows: Visualize the user journey through the application.

This behavior-driven approach allows Replay to create prototypes that are not only visually accurate but also functionally complete.

Replay vs. The Alternatives: A Head-to-Head Comparison#

Let's see how Replay stacks up against other popular prototyping tools:

As the table demonstrates, Replay offers a unique combination of speed, accuracy, and behavioral understanding that other tools simply can't match.

Building a Multi-Page Prototype with Replay: A Step-by-Step Guide#

Let's walk through the process of creating a multi-page prototype using Replay. We'll assume you have a screen recording of a user interacting with an existing web application.

Step 1: Upload Your Video#

Upload your screen recording to the Replay platform. Replay supports various video formats and resolutions.

Step 2: Replay Analyzes & Reconstructs#

Replay automatically analyzes the video, identifying UI elements, user interactions, and application logic. This process typically takes a few minutes, depending on the length and complexity of the video.

Step 3: Review and Refine#

Once the analysis is complete, Replay generates a working prototype. You can review the generated code, make adjustments, and add custom styling.

Step 4: Multi-Page Navigation#

Replay intelligently detects page transitions within the video and creates corresponding routes in the generated code. You can easily navigate between pages and test the user flow.

typescript
// Example of generated route handling in Next.js
import { useRouter } from 'next/router';

function HomePage() {
  const router = useRouter();

  const navigateToAbout = () => {
    router.push('/about');
  };

  return (
    <div>
      <h1>Welcome to the Home Page</h1>
      <button onClick={navigateToAbout}>Go to About Page</button>
    </div>
  );
}

export default HomePage;

Step 5: Supabase Integration (Optional)#

Replay seamlessly integrates with Supabase, allowing you to connect your prototype to a real-time database. This enables you to create dynamic prototypes with persistent data.

💡 Pro Tip: Use Replay's style injection feature to quickly apply consistent styling across your entire prototype.

Real-World Use Cases: From Idea to Interactive Prototype in Minutes#

Replay is ideal for a wide range of prototyping scenarios:

• •Validating new product features: Quickly create interactive prototypes to test user acceptance and gather feedback.
• •Redesigning existing applications: Capture user behavior in the current application and use Replay to generate a prototype of the redesigned interface.
• •Creating interactive tutorials: Turn screen recordings of software demonstrations into interactive tutorials.
• •Rapid UI experimentation: Quickly build and iterate on different UI concepts without writing code from scratch.

Advanced Features: Style Injection, Product Flow Maps, and More#

Replay offers a suite of advanced features to further enhance your prototyping workflow:

• •Style Injection: Apply custom CSS styles to the generated code, ensuring a consistent look and feel.
• •Product Flow Maps: Visualize the user journey through the application, identifying potential bottlenecks and areas for improvement.
• •Supabase Integration: Connect your prototype to a real-time database for dynamic data management.
• •Multi-Page Generation: Reconstruct complex, multi-page applications from a single video recording.

⚠️ Warning: While Replay strives for high accuracy, it's essential to review the generated code and make necessary adjustments.

Supabase Integration: Adding Dynamic Data to Your Prototypes#

Replay's Supabase integration allows you to connect your prototype to a real-time database, enabling you to create dynamic and data-driven experiences.

Here's how it works:

1. •Connect your Supabase project: Link your Supabase project to Replay.
2. •Define data models: Define the data models that you want to use in your prototype.
3. •Replay generates data access code: Replay automatically generates the code needed to fetch and update data from your Supabase database.

typescript
// Example of fetching data from Supabase
import { createClient } from '@supabase/supabase-js';

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

async function fetchProducts() {
  const { data, error } = await supabase
    .from('products')
    .select('*');

  if (error) {
    console.error('Error fetching products:', error);
    return [];
  }

  return data;
}

📝 Note: Replay intelligently infers data relationships from the video, simplifying the process of connecting your prototype to a database.

Replay: More Than Just a Tool, It's a Workflow Revolution#

Replay isn't just another screenshot-to-code tool. It's a fundamentally different approach to prototyping that leverages the power of video and behavior-driven reconstruction. By understanding user intent and application logic, Replay empowers developers and designers to create more intuitive, user-centric prototypes in a fraction of the time.

Frequently Asked Questions#

Is Replay free to use?#

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

How is Replay different from v0.dev?#

v0.dev is an AI code generator that creates UI components based on text prompts. Replay, on the other hand, reconstructs working UI from video recordings, capturing user behavior and application logic. Replay excels at reverse-engineering existing interfaces and capturing dynamic user flows.

What types of applications can Replay prototype?#

Replay can prototype a wide range of web applications, including e-commerce sites, SaaS platforms, and mobile apps (screen recorded on a device or emulator).

What code frameworks does Replay support?#

Replay currently supports React and Next.js, with plans to add support for other popular frameworks in the future.

How accurate is the generated code?#

Replay strives for high accuracy, but the accuracy of the generated code depends on the quality of the video recording and the complexity of the application. It's always recommended to review the generated code and make necessary adjustments.

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