How to Convert UI Video to a Vue.js App With TypeScript and Pinia - 2026 Guide

TL;DR: This guide shows how to use Replay, the video-to-code engine, to convert a UI video into a fully functional Vue.js application with TypeScript and Pinia for state management.

Stop building UI from static screenshots. In 2026, that's practically stone-age. The future is understanding user behavior, and building interfaces that reflect intent, not just appearance. That's why we need video-to-code.

For years, developers have been stuck manually translating mockups and design specs into actual code. Even with the rise of AI-powered code generation, most tools rely on static images, leading to brittle and incomplete applications. These tools miss the crucial context of user interaction and dynamic behavior.

Enter Replay. Replay analyzes video recordings of UI interactions to reconstruct working code. It's behavior-driven reconstruction. Replay leverages the power of Gemini to understand user intent, generate multi-page applications, and integrate seamlessly with modern frameworks like Vue.js, TypeScript, and state management libraries like Pinia.

Why Video-to-Code is the Future#

The key difference between Replay and other code generation tools lies in its ability to analyze video. This enables it to capture not just the visual appearance of the UI, but also the behavior of the user interacting with it. This "Behavior-Driven Reconstruction" is what sets Replay apart.

Consider the scenario of a user navigating through a multi-step form. A screenshot-to-code tool might be able to generate the individual form pages, but it won't understand the flow between them, the data dependencies, or the validation logic. Replay, on the other hand, can capture this entire process from a video recording and generate a fully functional Vue.js component with all the necessary logic.

Converting UI Video to a Vue.js App with TypeScript and Pinia#

Let's walk through a practical example of converting a UI video into a Vue.js application using TypeScript and Pinia with Replay. We'll assume you have a video recording of a user interacting with a simple to-do list application.

Step 1: Prepare Your Environment#

Before you start, make sure you have the following installed:

• •Node.js (v18 or later)
• •npm or yarn
• •A Replay account (Sign up at Replay)

Step 2: Upload Your Video to Replay#

1. •Log in to your Replay account.
2. •Click the "Upload Video" button.
3. •Select the video recording of your to-do list application.
4. •Provide a descriptive name for your project.
5. •Select "Vue.js", "TypeScript", and "Pinia" as the desired technologies.

Replay will now process the video, analyze the UI elements and user interactions, and generate the corresponding Vue.js code. This process can take a few minutes depending on the length and complexity of the video.

Step 3: Review and Customize the Generated Code#

Once the code generation is complete, you'll be presented with a preview of the generated Vue.js components. You can review the code, make any necessary adjustments, and download the project as a zip file.

📝 Note: Replay strives for pixel-perfect accuracy, but minor tweaks may be necessary to perfectly match your original design.

Step 4: Set up your Vue.js project#

1. •Extract the downloaded zip file into a directory.
2. •Open your terminal and navigate to the project directory.
3. •Install the project dependencies by running
   text

   npm install
   or
   text

   yarn install
   .

Step 5: Examine the Generated Code#

Replay will have generated a Vue.js project structure, complete with components, Pinia stores, and TypeScript type definitions. Let's look at a sample component:

typescript
// src/components/TodoList.vue
<template>
  <div>
    <h1>My To-Do List</h1>
    <ul>
      <li v-for="todo in todos" :key="todo.id">
        <input type="checkbox" v-model="todo.completed">
        <span>{{ todo.text }}</span>
      </li>
    </ul>
    <input type="text" v-model="newTodoText" @keyup.enter="addTodo">
    <button @click="addTodo">Add</button>
  </div>
</template>

<script setup lang="ts">
import { useTodoStore } from '../stores/todo';
import { ref } from 'vue';

const todoStore = useTodoStore();
const todos = todoStore.todos;
const newTodoText = ref('');

const addTodo = () => {
  if (newTodoText.value.trim() !== '') {
    todoStore.addTodo(newTodoText.value);
    newTodoText.value = '';
  }
};
</script>

Replay also generates Pinia stores for state management:

typescript
// src/stores/todo.ts
import { defineStore } from 'pinia';
import { ref } from 'vue';

interface Todo {
  id: number;
  text: string;
  completed: boolean;
}

export const useTodoStore = defineStore('todo', () => {
  const todos = ref<Todo[]>([
    { id: 1, text: 'Learn Vue.js', completed: false },
    { id: 2, text: 'Build a to-do app', completed: true },
  ]);

  let nextId = 3;

  const addTodo = (text: string) => {
    todos.value.push({ id: nextId++, text, completed: false });
  };

  return { todos, addTodo };
});

Step 6: Run the Application#

1. •Run the development server by running
   text

   npm run dev
   or
   text

   yarn dev
   .
2. •Open your browser and navigate to the URL provided by the development server (usually
   text

   http://localhost:3000
   ).

You should now see your to-do list application running in your browser, fully functional and built from a video recording!

Advanced Features of Replay#

Replay offers several advanced features that further enhance the code generation process:

• •Multi-Page Generation: Replay can analyze videos of users navigating through multiple pages and generate the corresponding Vue.js components for each page.
• •Supabase Integration: Replay can automatically integrate with Supabase, a popular open-source Firebase alternative, to handle data storage and authentication.
• •Style Injection: Replay can inject CSS styles directly into your Vue.js components, ensuring a consistent look and feel across your application.
• •Product Flow Maps: Replay generates visual diagrams of the user flow, making it easier to understand the application's overall structure.

💡 Pro Tip: Use clear and concise video recordings to ensure the best possible code generation results. Focus on demonstrating the key UI interactions and data flows.

Replay vs. Traditional Methods#

Let's compare using Replay with traditional UI development methods:

Replay significantly reduces the time and effort required to build UI, while maintaining a reasonable level of accuracy and maintainability.

⚠️ Warning: While Replay generates high-quality code, it's essential to review and test the generated code thoroughly before deploying it to production.

Why TypeScript and Pinia?#

Using TypeScript and Pinia with Replay offers several advantages:

• •TypeScript: Provides static typing, improving code maintainability and reducing runtime errors.
• •Pinia: Offers a simple and intuitive state management solution for Vue.js applications.
• •Improved Code Quality: The combination of TypeScript and Pinia results in cleaner, more organized, and easier-to-maintain 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.

How is Replay different from v0.dev?#

While both Replay and v0.dev aim to generate code from visual inputs, Replay focuses on analyzing video recordings to understand user behavior, while v0.dev primarily relies on static images. This allows Replay to generate more complete and functional applications. Replay also offers Supabase integration and style injection capabilities, which are not available in v0.dev. Replay focuses on behavior driven reconstruction while v0.dev is a component generation tool.

What types of videos work best with Replay?#

Videos with clear and concise UI interactions, minimal background noise, and stable camera angles tend to produce the best results.

Can I use Replay with other frameworks besides Vue.js?#

Replay currently supports Vue.js, but support for other frameworks like React and Angular is planned for the future.

How accurate is the generated code?#

Replay strives for pixel-perfect accuracy, but minor tweaks may be necessary to perfectly match your original design. The accuracy also depends on the quality of the video recording.

Conclusion#

Replay is revolutionizing UI development by enabling developers to convert UI videos into fully functional Vue.js applications with TypeScript and Pinia. By understanding user behavior and capturing dynamic interactions, Replay generates more complete, accurate, and maintainable code than traditional screenshot-to-code tools. Embrace the future of UI development with Replay and unlock the power of video-to-code.

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