What Frontend Framework Does Securo Use? React 19 + Vite Explained

Securo uses React 19 with React-DOM 19 for its frontend, bundled and served using Vite as the build tool.

The Securo finance platform's web interface is built on a modern React stack. According to the securo-finance/securo source code, the frontend combines the latest React release with Vite's fast development server and optimized production builds.

React 19 as the Core Framework

Securo's UI is implemented entirely in React 19, the most recent major version of the popular JavaScript library. This is declared explicitly in frontend/package.json with the dependency "react": "^19.2.0".

The entry point for the application is a standard React component located at frontend/src/App.tsx. This root component handles routing configuration, context providers, and the overall layout structure for the Securo finance interface.

Component Architecture

Components throughout the codebase follow React 19 patterns using TypeScript and TSX syntax. Here's a representative component structure you'll find in the project:

import { useState } from 'react';

export function Counter() {
  const [count, setCount] = useState(0);
  return (
    <button onClick={() => setCount(c => c + 1)}>
      Clicked {count} {count === 1 ? 'time' : 'times'}
    </button>
  );
}

This pattern—imports from 'react', function components, and the useState hook—appears consistently across the frontend/src/ directory.

Vite as the Build Tool

Rather than Create React App or Next.js, Securo uses Vite for its build pipeline. Vite provides instant server start, lightning-fast hot module replacement, and optimized production builds through Rollup.

Vite Configuration

The React integration is enabled through the official @vitejs/plugin-react plugin, as configured in frontend/vite.config.ts:

// vite.config.ts
import { defineConfig } from 'vite';
import react from '@vitejs/plugin-react';
import tailwindcss from 'tailwindcss';

export default defineConfig({
  plugins: [react(), tailwindcss()],
});

This configuration:

• Loads @vitejs/plugin-react to handle JSX/TSX compilation
• Integrates Tailwind CSS through its Vite plugin for styling
• Uses Vite's default esbuild-based transforms for fast development builds

Key Files Defining the Stack

File	Purpose
frontend/package.json	Declares React 19 ("react": "^19.2.0"), React-DOM 19, and the Vite React plugin (@vitejs/plugin-react).
frontend/vite.config.ts	Configures the Vite build pipeline with React and TailwindCSS plugins.
frontend/src/App.tsx	The root React component establishing the application's component tree.

Why This Stack Matters for Securo Finance

The React 19 + Vite combination offers specific advantages for a financial application:

• Fast iteration: Vite's HMR lets developers see changes instantly without full page reloads
• React 19 features: Access to the latest React improvements including better rendering performance and new hooks
• TypeScript-first: .tsx files throughout enforce type safety for financial calculations and API interfaces
• Optimized bundles: Vite's production build produces highly efficient static assets for deployment

Summary

• Securo's frontend is built with React 19 and React-DOM 19
• Vite serves as the build tool and development server, configured in frontend/vite.config.ts
• The @vitejs/plugin-react plugin enables JSX/TSX support and React Fast Refresh
• The application root lives in frontend/src/App.tsx
• Tailwind CSS is integrated for styling via Vite's plugin system

Frequently Asked Questions

Does Securo use Next.js or Create React App?

No. Securo uses Vite, not Next.js or Create React App. The build system is explicitly configured in frontend/vite.config.ts using @vitejs/plugin-react for React support. This provides faster development builds compared to webpack-based alternatives.

What version of React does Securo use?

Securo runs React 19.2.0 or newer, as specified by the ^19.2.0 semver range in frontend/package.json. This includes React-DOM 19 for DOM rendering operations.

How does Securo handle styling?

Securo integrates Tailwind CSS directly into the Vite build pipeline. The frontend/vite.config.ts imports tailwindcss and includes it in the plugins array alongside the React plugin, enabling utility-first styling throughout the component tree.

Is Securo's frontend written in TypeScript?

Yes. All components use TSX (TypeScript JSX) syntax with explicit type annotations. Files like frontend/src/App.tsx demonstrate the TypeScript-first approach, providing compile-time safety for the financial application's data structures.

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}