Replay AI: Building Accessible UI from UX Design Videos (2026)

TL;DR: Replay AI leverages video analysis and Gemini to generate accessible and functional UI code directly from UX design recordings, streamlining development and ensuring adherence to accessibility standards.

The future of UI development isn't about static mockups; it's about understanding user behavior. Stop translating flat designs into code and start building directly from the source of truth: user experience videos. In 2026, accessible design isn't optional; it's expected. And Replay is the only tool that truly understands the user's journey, automatically translating that understanding into accessible, functional code.

The Problem: Accessibility as an Afterthought#

For too long, accessibility has been relegated to a late-stage checklist item. Designers create beautiful interfaces, developers painstakingly recreate them in code, and then accessibility audits reveal a litany of issues. This is inefficient, costly, and ultimately leads to a subpar user experience for individuals with disabilities.

Traditional screenshot-to-code tools offer a superficial solution. They can generate code based on visual elements, but they lack the crucial understanding of user intent and interaction. They see a button, but they don't know why the user clicked it or what happened next. This is where Replay changes the game.

Replay AI: Behavior-Driven Reconstruction#

Replay analyzes video recordings of UX designs, leveraging advanced AI (powered by Gemini) to understand user behavior, identify key interactions, and reconstruct the UI with accessibility baked in from the start. It's not just about pixels; it's about purpose. We call this "Behavior-Driven Reconstruction."

Here's the core difference: Replay doesn't just see what the user sees; it understands what the user is trying to do. This allows Replay to generate code that is not only visually accurate but also semantically correct and accessible.

Key Benefits of Behavior-Driven Reconstruction:#

• •Accessibility First: Generates code that adheres to WCAG guidelines, ensuring inclusivity from the outset.
• •Faster Development: Automates the tedious process of translating designs into code, freeing up developers to focus on more complex tasks.
• •Improved User Experience: Creates interfaces that are intuitive and accessible to all users, regardless of their abilities.
• •Reduced Costs: Minimizes the need for costly accessibility audits and remediation efforts.
• •Living Documentation: Video becomes a living document of the intended user experience.
• •Future-Proofing: As accessibility standards evolve, Replay can adapt to generate code that meets the latest requirements.

Replay Features in Action#

Let's explore some of Replay's key features and how they contribute to building accessible UIs:

Multi-Page Generation#

Replay can analyze multi-page flows within a single video recording, generating code for entire user journeys. This is crucial for creating complex applications with seamless navigation. Imagine recording a user testing a checkout flow and Replay generating all the necessary React components, complete with state management and accessibility attributes.

Supabase Integration#

Replay seamlessly integrates with Supabase, allowing you to quickly connect your generated UI to a backend database. This enables you to build dynamic and data-driven applications with ease.

typescript
// Example of fetching data from Supabase in a Replay-generated component
import { supabase } from './supabaseClient';

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

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

  return data;
};

export default fetchData;

Style Injection#

Replay allows you to inject custom styles into your generated UI, ensuring that it aligns with your brand guidelines. This gives you complete control over the visual appearance of your application. You can use CSS, Sass, or any other styling language.

Product Flow Maps#

Replay automatically generates product flow maps from your video recordings, providing a clear visual representation of the user journey. This helps you identify potential bottlenecks and optimize the user experience.

Replay vs. Traditional Screenshot-to-Code Tools#

The following table highlights the key differences between Replay and traditional screenshot-to-code tools:

💡 Pro Tip: Use clear and concise voiceover in your UX design videos to help Replay accurately interpret user intent.

Building an Accessible UI with Replay: A Step-by-Step Guide#

Here's a simple example of how to use Replay to build an accessible UI:

Step 1: Record Your UX Design#

Record a video of your UX design, clearly demonstrating the user flow and interactions. Ensure that you narrate your actions and explain the purpose of each element.

Step 2: Upload to Replay#

Upload your video to Replay. The AI engine will analyze the video and generate the corresponding code.

Step 3: Review and Refine#

Review the generated code and make any necessary adjustments. Replay provides a user-friendly interface for editing the code and adding custom styles.

Step 4: Integrate with Your Backend#

Connect your generated UI to your backend database using Supabase integration.

Step 5: Deploy and Test#

Deploy your application and thoroughly test it to ensure that it meets your accessibility requirements.

typescript
// Example of a Replay-generated accessible button component in React
import React from 'react';

interface ButtonProps {
  onClick: () => void;
  children: React.ReactNode;
  ariaLabel: string; // Crucial for accessibility
}

const AccessibleButton: React.FC<ButtonProps> = ({ onClick, children, ariaLabel }) => {
  return (
    <button onClick={onClick} aria-label={ariaLabel}>
      {children}
    </button>
  );
};

export default AccessibleButton;

⚠️ Warning: While Replay significantly automates accessibility, always conduct thorough manual testing to ensure full compliance with accessibility guidelines.

The Future is Behavior-Driven#

The shift from static designs to dynamic, behavior-driven UI development is inevitable. Replay is leading the charge, empowering developers to build accessible and intuitive interfaces with unprecedented speed and efficiency. By focusing on user behavior, Replay ensures that accessibility is not an afterthought but an integral part of the development process.

📝 Note: Replay's AI is constantly learning and improving. The more you use it, the better it gets at generating accurate and accessible code.

Frequently Asked Questions#

Is Replay free to use?#

Replay offers a free tier with limited features and usage. Paid plans are available for more advanced features and higher usage limits. Check our pricing page for the most up-to-date information.

How is Replay different from v0.dev?#

While both tools aim to generate code, Replay distinguishes itself by using video as the primary input and focusing on behavior-driven reconstruction. v0.dev primarily uses text prompts and generates code based on visual appearance. Replay goes deeper, understanding user intent and generating code that is not only visually accurate but also semantically correct and accessible. Replay also focuses heavily on accessibility from the start.

What kind of videos does Replay support?#

Replay supports most common video formats, including MP4, MOV, and AVI. High-quality videos with clear audio narration will yield the best results.

What frameworks and libraries does Replay support?#

Currently, Replay primarily focuses on React, but we are actively working on expanding support for other popular frameworks and libraries.

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