localhost:3000 The Most Popular Development Server Port
🚀 Open localhost:3000 Click to access your development server running on port 3000 Localhost:3000 is the most popular development server port, widely adopted across multiple frameworks and platforms. “Localhost” refers to your own computer (typically mapped to IP address 127.0.0.1), and “3000” is the port number where development servers listen for connections. This combination has become the de facto standard for web development, making it instantly recognizable to developers worldwide.