Home Codes Create Your Own Chat App: A Beginner’s Guide with Code Examples

Create Your Own Chat App: A Beginner’s Guide with Code Examples

Creating a website like “ChatGPT” involves multiple components, including HTML, CSS, JavaScript, and possibly backend technologies. However, building a fully functional chat application like that requires a comprehensive development process beyond a simple code snippet.

Here, I’ll provide you with a simplified example of the front-end structure for a chat application. Please note that this is a basic starting point, and you’ll need to implement various features, such as real-time messaging and user authentication, to create a complete chat platform.

Install Visual Studio Code: If you haven’t already, download and install Visual Studio Code from the official website: https://code.visualstudio.com/

Create a New Project Folder: Create a new folder on your computer where you’ll store your project files. You can name it something like “ChatApp.”

Create Files: Inside your project folder, create three new files: index.html, styles.css, and app.js. You can do this directly from within VS Code by right-clicking the folder in the Explorer sidebar, selecting “New File,” and naming the file.

Copy and Paste Code: Open each file in VS Code and copy the corresponding code provided earlier into each file (index.html, styles.css, app.js) one by one.

HTML (index.html):

<!DOCTYPE html>
<html lang="en">
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Chat Application</title>
<link rel="stylesheet" href="styles.css">
  <div class="chat-container">
    <div class="chat-header">
      Chat Room
    <div class="chat-messages" id="chat-messages">
      <!-- Chat messages will be displayed here -->
    <div class="chat-input">
      <input type="text" id="message" placeholder="Type your message">
      <button id="send">Send</button>
  <script src="app.js"></script>

CSS (styles.css):

body {
  margin: 0;
  font-family: Arial, sans-serif;

.chat-container {
  width: 300px;
  margin: 50px auto;
  border: 1px solid #ccc;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  overflow: hidden;

.chat-header {
  background-color: #007bff;
  color: #fff;
  text-align: center;
  padding: 10px;
  font-size: 18px;

.chat-messages {
  max-height: 200px;
  overflow-y: auto;
  padding: 10px;

.message {
  margin-bottom: 10px;
  padding: 5px 10px;
  border-radius: 5px;
  background-color: #f2f2f2;

.chat-input {
  display: flex;
  align-items: center;
  padding: 10px;
  background-color: #f5f5f5;

input[type="text"] {
  flex: 1;
  padding: 8px;
  border: none;
  border-radius: 5px;
  background-color: #fff;
  box-shadow: 0 0 3px rgba(0, 0, 0, 0.2);

button {
  background-color: #007bff;
  color: #fff;
  border: none;
  padding: 8px 15px;
  border-radius: 5px;
  cursor: pointer;
  margin-left: 10px;

JavaScript (app.js):

document.addEventListener('DOMContentLoaded', () => {
  const messageInput = document.getElementById('message');
  const sendButton = document.getElementById('send');
  const chatMessages = document.getElementById('chat-messages');

  sendButton.addEventListener('click', () => {
    const messageText = messageInput.value.trim();
    if (messageText !== '') {
      const messageElement = document.createElement('div');
      messageElement.textContent = messageText;

      // Clear input field
      messageInput.value = '';

Now Run the Code

Open the terminal in VS Code by selecting “Terminal” > “New Terminal.”

Navigate to your project folder by using the cd command. For example:

cd path/to/ChatApp

Run a local server to preview your HTML file. You can use a tool like live-server:

npm install -g live-server

This will start a local server, and you’ll see an address like in the terminal. Open this address in your web browser to see the chat application.

Testing the Chat Application: Now, you can interact with the basic chat application you’ve created. Type a message in the input field and click the “Send” button to see your message displayed in the chat messages section.

Please note that this is a simple demonstration, and for a more advanced chat application like the one you referred to, you’ll need to implement features like real-time messaging, user authentication, and possibly backend technologies like Node.js and databases.


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