What happens when you build the same app using traditional coding and Vibe coding?
We tested both step by step on two real-world tasks: a BMI calculator and a multi-user budget tracker with role-based access.
This hands-on guide shows exactly how each approach works, what it takes to get results, and where each one wins or falls short.
If you code, you’ll want to see this.
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What is Traditional Coding?
Traditional coding is the process of manually building software by writing and organizing code using programming languages such as HTML, CSS, JavaScript, Python, or Java. Developers are responsible for setting up the project structure, implementing features line-by-line, debugging issues, and maintaining the application over time.
This approach requires strong technical skills, as you must understand how different parts of the application work together, how to write clean and efficient code, and how to manage version control, testing, and deployment.
What is Vibe Coding?
Vibe Coding is a modern way of building software using natural language prompts instead of traditional code.
Instead of manually writing every line, you communicate your requirements, such as “build a BMI calculator with inputs for height and weight,” and let the tool handle the implementation.
Developers using vibe coding focus more on iterative refinement, testing, and high-level guidance than low-level coding.
While this approach accelerates prototyping and reduces the need for technical setup, it may lack the precision, optimization, and maintainability required for complex or large-scale applications.
How we compared Vibe coding with the traditional coding approach
We built two real-world apps: a BMI Calculator and a Multi-User Budget Tracker with Role-Based Access, using both traditional and vibe coding approaches.
For each, we tracked development time, tools used, technical skills required, debugging ease, scalability, and final output.
We used standard stacks (HTML/CSS/JS and Node.js/MongoDB) for traditional coding and prompt-based tools like Lovable and Replit for vibe coding.
This hands-on, task-based testing helped us evaluate speed, flexibility, control, and suitability for different user types and project needs.
Vibe Coding vs Traditional Coding: Side-by-side task comparison
Task 1: BMI Calculator
The Task
The task is to build a BMI (Body Mass Index) calculator using traditional frontend technologies. It takes user input for height and weight, calculates the BMI, and displays the result along with a health classification. The focus is on creating a responsive, user-friendly interface using HTML, CSS, and JavaScript.
Traditional Coding Approach
Step 1: Set Up the Project Structure
Create three separate files in your project directory:
- index.html
- styles.css
- script.js
Explanation:
Separating structure (HTML), presentation (CSS), and logic (JavaScript) follows best practices in frontend development. It makes your code modular, easier to maintain, and more scalable. This separation also allows teams to collaborate better across roles, like design and development.
Step 2: Build the HTML Structure (index.html)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>BMI Calculator</title>
<link rel="stylesheet" href="styles.css" />
</head>
<body>
<div class="container">
<h1>BMI Calculator</h1>
<div class="input-group">
<label for="weight">Weight (kg):</label>
<input type="number" id="weight" placeholder="Enter weight" />
</div>
<div class="input-group">
<label for="height">Height (cm):</label>
<input type="number" id="height" placeholder="Enter height" />
</div>
<button id="calculate-btn">Calculate BMI</button>
<div id="result" class="hidden">
<h2>Your BMI: <span id="bmi-value"></span></h2>
<p>Classification: <span id="bmi-category"></span></p>
</div>
</div>
<script src="script.js"></script>
</body>
</html>
Explanation:
This step defines the skeleton of your application. You’re creating labeled input fields for weight and height, a button to trigger calculation, and a result section to display the output.
It also links to external CSS and JS files for styling and logic, keeping concerns separated.
Step 3: Add Styling (styles.css)
{
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: Arial, sans-serif;
}
.container {
max-width: 500px;
margin: 50px auto;
padding: 20px;
background-color: #f9f9f9;
border-radius: 8px;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}
h1 {
text-align: center;
margin-bottom: 20px;
color: #333;
}
.input-group {
margin-bottom: 15px;
}
label {
display: block;
margin-bottom: 5px;
font-weight: bold;
}
input {
width: 100%;
padding: 10px;
border: 1px solid #ddd;
border-radius: 4px;
font-size: 16px;
}
button {
width: 100%;
padding: 12px;
background-color: #4caf50;
color: white;
border: none;
border-radius: 4px;
font-size: 16px;
cursor: pointer;
margin-top: 10px;
}
button:hover {
background-color: #45a049;
}
#result {
background-color: #e9f7ef;
padding: 15px;
border-radius: 4px;
margin-top: 20px;
}
.hidden {
display: none;
}
#bmi-category {
font-weight: bold;
}
Explanation:
The CSS styles define the calculator's visual layout and aesthetics. It uses flex-style centering, box styling, color schemes, and responsive inputs. This improves the application's usability and polish and ensures that the interface looks consistent across browsers and screen sizes.
Step 4: Implement JavaScript Logic (script.js)
document.addEventListener('DOMContentLoaded', function () {
const calculateBtn = document.getElementById('calculate-btn');
const weightInput = document.getElementById('weight');
const heightInput = document.getElementById('height');
const bmiValue = document.getElementById('bmi-value');
const bmiCategory = document.getElementById('bmi-category');
const resultDiv = document.getElementById('result');
calculateBtn.addEventListener('click', calculateBMI);
function calculateBMI() {
const weight = parseFloat(weightInput.value);
const height = parseFloat(heightInput.value);
// Validate inputs
if (isNaN(weight) || isNaN(height) || weight <= 0 || height <= 0) {
alert('Please enter valid values for weight and height');
return;
}
const heightInMeters = height / 100;
const bmi = weight / (heightInMeters * heightInMeters);
bmiValue.textContent = bmi.toFixed(1);
let category;
if (bmi < 18.5) {
category = 'Underweight';
bmiCategory.style.color = '#2196F3';
} else if (bmi < 25) {
category = 'Normal weight';
bmiCategory.style.color = '#4CAF50';
} else if (bmi < 30) {
category = 'Overweight';
bmiCategory.style.color = '#FF9800';
} else {
category = 'Obese';
bmiCategory.style.color = '#F44336';
}
bmiCategory.textContent = category;
resultDiv.classList.remove('hidden');
}
});
Step 5: Final Testing and Edge Case Handling
- Try entering negative numbers, empty fields, or non-numeric input.
- Observe how the alert system prevents invalid BMI calculations.
- Optionally, enhance with keyboard accessibility or ARIA roles.
Explanation:
Testing and validation are essential to catch unexpected inputs and bugs. Edge cases like zero or negative values must be handled gracefully to avoid runtime errors. This step ensures the application is reliable in real-world usage and helps enforce a positive user experience.
Traditional Coding Analysis
Development Time:
Approximately 30–45 minutes for an experienced frontend developer.
- HTML structure: ~10 minutes
- CSS styling: ~15–20 minutes
- JavaScript logic: ~10–15 minutes
Time may increase slightly for features like input validation, responsive design, or accessibility enhancements.
Required Skills:
- HTML: For building a semantic structure and form elements
- CSS: For styling layout, typography, spacing, and responsiveness
- JavaScript: To handle event listeners, perform calculations, validate inputs, and update the DOM dynamically
- Browser Dev Tools: For inspecting elements and debugging
These are core web development skills that ensure total control and customization of the UI and user interaction.
Advantages:
- Full control over UI layout, structure, and behavior
- Clean separation of concerns using HTML, CSS, and JS
- Code is portable, reusable, and optimized for learning or production
- Easier to extend or customize the logic (e.g., add animations, keyboard shortcuts)
- No tool dependencies — works in any browser or editor
Challenges:
- Requires a good understanding of vanilla JavaScript and the DOM
- Manual setup for validation, interactivity, and responsiveness
- More prone to syntax bugs and runtime errors if logic is not carefully handled
- Styling can take longer without a framework
- Slower iteration compared to AI-assisted or no-code tools
Vibe Coding Workflow
Step 1: Describe Your Vision
Prompt we used: “Create a responsive BMI calculator web app using HTML, CSS, and JavaScript. It should have input fields for height in centimeters and weight in kilograms. When the user clicks the 'Calculate BMI' button, it should display the BMI value (rounded to 1 decimal place) and a classification message: Underweight, Normal weight, Overweight, or Obese. Use color coding for each category. The layout should be clean, centered, and mobile-friendly.” |
When you provide this prompt to the Vibe coding tool (we are using the Lovable app for this task), it successfully creates and executes the tool.
Here’s how it looks:
Step 2: Iterative Refinement
After the execution of our first prompt, we asked the tools to make changes to that version.
After executing this code, it didn’t work the way we wanted, so we asked the tool to correct the error.
This code worked successfully; here’s the final tool functioning.
Step 3: Deploy or Export
The tool allows you to publish your application or collaborate with GitHub. You can also invite other developers to check if this application meets your requirements and collaborate.
Here’s how we have published the tool online. We also have a unique domain name from the Lovable tool.
Vibe Coding Analysis
Development Time:
5–15 minutes for a non-technical or semi-technical user
- Prompting and UI generation: ~2–4 minutes
- Styling with suggestions/AI edits: ~3–5 minutes
- Fixing layout or output issues (if needed): ~5 minutes
- Deployment or preview testing: ~2 minutes
Required Skills:
- Basic understanding of how to write effective prompts
- Visual sense of layout and interaction (drag-and-drop or AI-assisted styling)
- No need for in-depth coding, but helpful to understand HTML/CSS terms
- Ability to iterate through prompt responses or generated layouts
Advantages:
- Extremely fast to build functional UI prototypes or calculators
- No need to write or debug traditional code manually
- Ideal for MVPs, mockups, or quick internal tools
- Allows non-developers or designers to ship usable interfaces
- Can integrate basic logic and style with minimal effort
Challenges:
- Limited backend or architectural control (e.g., role-based access logic is hard)
- Hard to implement complex logic or business rules accurately
- Generated code can be bloated, redundant, or hard to maintain
- Custom features often require jumping back to traditional coding
- Debugging or scaling beyond UI logic becomes inefficient or impossible
Side-by-Side Comparison
| Aspect | Traditional Coding | Vibe Coding |
| Development Time | 30–45 minutes | 5–15 minutes |
| Lines of Code Written Manually | ~100+ | ~10–15 (prompts only) |
| Technical Skill Required | High | Low |
| Customization Potential | Unlimited | Limited by tool capabilities |
| Learning Investment | Significant | Minimal |
| Debugging Difficulty | Medium–High | Low (initially) |
| Maintenance Control | Complete | Partial |
| Cost | Free (excluding learning time) | Often requires a subscription |
Takeaway
If you need full control over structure, styling, and logic, and are comfortable working with HTML, CSS, and JavaScript, the traditional coding approach is your best bet. It takes longer (30–45 minutes) but results in clean, scalable code.
On the other hand, vibe coding (via Lovable) lets you build a working BMI calculator in just 5–15 minutes with minimal effort.
It’s perfect for non-developers or rapid prototyping. However, it’s limited in backend logic and customization. For fast UI generation, use vibe coding. For robust, maintainable apps, stick with traditional coding.
Also Check Out: How to Get Started with Vibe Coding with AI (The Easy Way)
Task 2. Multi-User Budget Tracker with Role-Based Access Control (RBAC)
The Task
The task is to build a multi-user budget tracker web app with role-based access control (RBAC). It allows users to register as either admins or viewers. Admins can create budgets and add expenses, while viewers can only view them. The project includes authentication, protected routes, and a functional frontend.
Traditional Coding Approach
Step 1: Initialize the Project
mkdir budget-tracker-rbac
cd budget-tracker-rbac
npm init -y
npm install express mongoose bcryptjs jsonwebtoken dotenv cors
Explanation:
You start by creating a new Node.js project and installing all the necessary dependencies. express handles routes, mongoose connects to MongoDB, bcryptjs hashes passwords, jsonwebtoken manages user sessions, and dotenv loads environment variables securely. cors enables frontend-backend communication during local development.
Step 2: Connect to MongoDB
db.js
const mongoose = require('mongoose');
const connectDB = async () => {
try {
await mongoose.connect(process.env.MONGO_URI);
console.log("MongoDB connected");
} catch (err) {
console.error(err.message);
process.exit(1);
}
};
module.exports = connectDB;
Explanation:
This file defines an async function to connect your application to MongoDB using the Mongoose ORM. If the connection fails, it logs the error and exits. This file is imported and run when your Express app starts.
Step 3: Set Up User Schema
models/User.js
const mongoose = require('mongoose');
const userSchema = new mongoose.Schema({
name: String,
email: { type: String, unique: true },
password: String,
role: { type: String, enum: ['admin', 'viewer'], default: 'viewer' }
});
module.exports = mongoose.model('User', userSchema);
Explanation:
This schema stores user data, including their role. Roles like admin and viewer determine permissions. Email is enforced as unique, and passwords will be securely hashed before saving.
Step 4: Create Auth Middleware with Role Check
middleware/auth.js
const jwt = require('jsonwebtoken');
module.exports = (roles = []) => (req, res, next) => {
const token = req.header("x-auth-token");
if (!token) return res.status(401).json({ msg: "No token, authorization denied" });
try {
const decoded = jwt.verify(token, process.env.JWT_SECRET);
req.user = decoded;
if (roles.length && !roles.includes(req.user.role)) {
return res.status(403).json({ msg: "Access denied: insufficient role" });
}
next();
} catch (err) {
res.status(400).json({ msg: "Invalid token" });
}
};
Explanation:
This middleware checks the JWT token and confirms the user’s role matches what’s required for the route. You can restrict access (e.g., auth(['admin'])) or allow multiple roles.
Step 5: Create Auth Routes
routes/auth.js
const express = require('express');
const bcrypt = require('bcryptjs');
const jwt = require('jsonwebtoken');
const User = require('../models/User');
const router = express.Router();
// Register
router.post('/register', async (req, res) => {
const { name, email, password, role } = req.body;
const hashed = await bcrypt.hash(password, 10);
const user = new User({ name, email, password: hashed, role });
await user.save();
res.status(201).json({ msg: 'User registered' });
});
// Login
router.post('/login', async (req, res) => {
const { email, password } = req.body;
const user = await User.findOne({ email });
if (!user || !(await bcrypt.compare(password, user.password))) {
return res.status(400).json({ msg: 'Invalid credentials' });
}
const token = jwt.sign({ id: user._id, role: user.role }, process.env.JWT_SECRET);
res.json({ token });
});
module.exports = router;
Explanation:
These routes let users register and log in. Passwords are hashed using bcryptjs. On login, we check the password and return a JWT that the frontend can use for secure access to protected routes.
Step 6: Define Budget Schema
models/Budget.js
const mongoose = require('mongoose');
const budgetSchema = new mongoose.Schema({
name: String,
owner: { type: mongoose.Schema.Types.ObjectId, ref: 'User' },
members: [{ type: mongoose.Schema.Types.ObjectId, ref: 'User' }],
expenses: [{
category: String,
amount: Number,
note: String,
createdAt: { type: Date, default: Date.now }
}]
});
module.exports = mongoose.model('Budget', budgetSchema);
Explanation:
The budget schema includes an owner (admin), members, and a list of expenses. Each expense has fields like category, amount, and timestamp, allowing for shared tracking with fine-grained updates.
Step 7: Build Budget Routes
routes/budget.js
const express = require('express');
const Budget = require('../models/Budget');
const auth = require('../middleware/auth');
const router = express.Router();
// Admin creates budget
router.post('/', auth(['admin']), async (req, res) => {
const { name } = req.body;
const budget = new Budget({ name, owner: req.user.id, members: [req.user.id] });
await budget.save();
res.status(201).json(budget);
});
// Admin adds expense
router.post('/:id/expense', auth(['admin']), async (req, res) => {
const { category, amount, note } = req.body;
const budget = await Budget.findById(req.params.id);
budget.expenses.push({ category, amount, note });
await budget.save();
res.json(budget);
});
// Viewers/Admins can view the budget
router.get('/:id', auth(['admin', 'viewer']), async (req, res) => {
const budget = await Budget.findById(req.params.id);
res.json(budget);
});
module.exports = router;
Explanation:
We define REST routes for creating budgets (admin only), adding expenses (admin), and viewing budgets (admin/viewer). Role-based access is enforced via middleware, ensuring only authorized users can perform actions.
Step 8: Bootstrap the Server
server.js
const express = require('express');
const dotenv = require('dotenv');
const connectDB = require('./db');
const cors = require('cors');
dotenv.config();
connectDB();
const app = express();
app.use(cors());
app.use(express.json());
app.use('/api/auth', require('./routes/auth'));
app.use('/api/budgets', require('./routes/budget'));
const PORT = process.env.PORT || 5000;
app.listen(PORT, () => console.log(`Server running on port ${PORT}`));
Explanation:
This file initializes the server, connects to the database, adds middleware for JSON parsing and CORS, and registers routes. It listens on a port and provides the foundation for backend functionality.
Step 9: Create Frontend Pages
Files to create:
- index.html (registration)
- login.html (login)
- dashboard.html (create/view budgets, add expenses)
- script.js (API interaction logic)
- style.css (basic styles)
Explanation:
The frontend is written in vanilla HTML, CSS, and JavaScript. It provides forms for registration and login, and a dashboard for budget actions.
It interacts with the backend via API calls using fetch().
1. index.html – Register Page
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Register</title>
<link rel="stylesheet" href="style.css" />
</head>
<body>
<h2>Register</h2>
<form id="register-form">
<input type="text" id="name" placeholder="Name" required /><br />
<input type="email" id="email" placeholder="Email" required /><br />
<input type="password" id="password" placeholder="Password" required /><br />
<select id="role">
<option value="viewer">Viewer</option>
<option value="admin">Admin</option>
</select><br />
<button type="submit">Register</button>
</form>
<p><a href="login.html">Already have an account?</a></p>
<script src="script.js"></script>
</body>
</html>
Explanation: This page allows new users to register. They enter their name, email, password, and choose a role (admin or viewer). The form is handled via JavaScript using fetch, which sends a POST request to the backend. It also provides a link to the login page, enabling a smooth user onboarding flow.
2. login.html – Login Page
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Login</title>
<link rel="stylesheet" href="style.css" />
</head>
<body>
<h2>Login</h2>
<form id="login-form">
<input type="email" id="login-email" placeholder="Email" required /><br />
<input type="password" id="login-password" placeholder="Password" required /><br />
<button type="submit">Login</button>
</form>
<p><a href="index.html">New user? Register</a></p>
<script src="script.js"></script>
</body>
</html>
Explanation: The login page captures the user's email and password. Upon submission, it sends a login request to the backend. If successful, it stores the JWT token in localStorage and redirects the user to the dashboard. This authentication token is later used to protect all sensitive API calls.
3. dashboard.html – Budget Tracker
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Dashboard</title>
<link rel="stylesheet" href="style.css" />
</head>
<body>
<h2>Budget Dashboard</h2>
<div id="create-budget">
<input type="text" id="budget-name" placeholder="Budget Name" />
<button onclick="createBudget()">Create Budget</button>
</div>
<div id="add-expense">
<input type="text" id="budget-id" placeholder="Budget ID" />
<input type="text" id="category" placeholder="Category" />
<input type="number" id="amount" placeholder="Amount" />
<input type="text" id="note" placeholder="Note" />
<button onclick="addExpense()">Add Expense</button>
</div>
<div>
<input type="text" id="view-id" placeholder="Enter Budget ID to View" />
<button onclick="viewBudget()">View Budget</button>
<pre id="budget-output"></pre>
</div>
<script src="script.js"></script>
</body>
</html>
Explanation: The dashboard is where users interact with budget data. Admins can create budgets and add expenses, while both Admins and Viewers can view budget details. Input fields take in data, and buttons trigger API calls. A pre tag displays JSON data for clarity during development or inspection.
4. style.css – Basic Styling
body {
font-family: Arial, sans-serif;
padding: 20px;
}
input, button, select {
margin: 5px;
padding: 8px;
width: 200px;
}
Explanation: This CSS file applies basic styles to inputs, buttons, and the layout. It ensures the UI is user-friendly without requiring external frameworks. Simple padding and font adjustments improve readability and maintain a clean look for testing and demonstration.
5. script.js – JS Logic for API Calls
const API = "http://localhost:5000/api";
let token = localStorage.getItem("token");
// Registration
document.getElementById("register-form")?.addEventListener("submit", async (e) => {
e.preventDefault();
const name = document.getElementById("name").value;
const email = document.getElementById("email").value;
const password = document.getElementById("password").value;
const role = document.getElementById("role").value;
const res = await fetch(`${API}/auth/register`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ name, email, password, role }),
});
if (res.ok) {
alert("Registered! Now login.");
window.location.href = "login.html";
} else {
alert("Registration failed.");
}
});
// Login
document.getElementById("login-form")?.addEventListener("submit", async (e) => {
e.preventDefault();
const email = document.getElementById("login-email").value;
const password = document.getElementById("login-password").value;
const res = await fetch(`${API}/auth/login`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ email, password }),
});
const data = await res.json();
if (data.token) {
localStorage.setItem("token", data.token);
window.location.href = "dashboard.html";
} else {
alert("Login failed.");
}
});
// Create Budget (Admin Only)
async function createBudget() {
const name = document.getElementById("budget-name").value;
const res = await fetch(`${API}/budgets`, {
method: "POST",
headers: {
"Content-Type": "application/json",
"x-auth-token": localStorage.getItem("token"),
},
body: JSON.stringify({ name }),
});
const data = await res.json();
alert(`Budget created with ID: ${data._id}`);
}
// Add Expense (Admin Only)
async function addExpense() {
const id = document.getElementById("budget-id").value;
const category = document.getElementById("category").value;
const amount = document.getElementById("amount").value;
const note = document.getElementById("note").value;
const res = await fetch(`${API}/budgets/${id}/expense`, {
method: "POST",
headers: {
"Content-Type": "application/json",
"x-auth-token": localStorage.getItem("token"),
},
body: JSON.stringify({ category, amount, note }),
});
const data = await res.json();
alert("Expense added.");
}
// View Budget (Admin/Viewer)
async function viewBudget() {
const id = document.getElementById("view-id").value;
const res = await fetch(`${API}/budgets/${id}`, {
headers: {
"x-auth-token": localStorage.getItem("token"),
},
});
const data = await res.json(); document.getElementById("budget-output").textContent = JSON.stringify(data, null, 2);
}
Explanation: This single JS file handles registration, login, token management, and all dashboard interactions. It uses fetch() to talk to the backend API with POST and GET requests. It also stores the JWT token, adds headers, and provides inline feedback like alert() or redirects the user post-login.
Step 10: Connect Frontend to API
script.js (Example):
fetch("http://localhost:5000/api/budgets", {
method: "POST",
headers: {
"Content-Type": "application/json",
"x-auth-token": localStorage.getItem("token")
},
body: JSON.stringify({ name: "Marketing Budget" })
});Explanation:
The front end calls backend APIs using fetch and includes the JWT in headers for authentication. Budget creation, expense addition, and budget viewing are all handled this way, matching the API routes you defined.
Step 11: Test the Full Workflow
1. Register as an admin and a viewer
2. Log in and get the token stored in localStorage
3. Try:
- Admin creating budget
- Viewer viewing a budget
- Admin adding expenses
- Viewer is trying to add expenses (should be denied)
Explanation:
This testing phase validates that role-based access control works as expected. Admins should be able to modify data, while viewers should have read-only access. This step confirms your app's functionality and security.
Step 12: Optional – Deploy Your App
- Use MongoDB Atlas for a production database
- Deploy backend to Render, Railway, or Heroku
- Host frontend on Netlify, Vercel, or GitHub Pages
- Set environment variables (MONGO_URI, JWT_SECRET)
- Enable CORS for production domains
Explanation:
To make your app live, deploy the backend and frontend separately. Ensure environment configs are secure and working. Add production-ready CORS headers and database settings for a smooth user experience.
Traditional Coding Analysis
Development Time:
3–5 hours for an experienced full-stack developer
- Setting up backend project & dependencies: ~15–20 minutes
- Creating database models & auth logic: ~30–40 minutes
- Building role-based API routes: ~30–40 minutes
- Frontend (HTML, CSS, JS) integration: ~45–60 minutes
- Testing & debugging: ~30–45 minutes
Required Skills:
- Proficiency in Node.js and Express.js for server-side development
- MongoDB + Mongoose knowledge for database modeling
- Understanding of JWT authentication and role-based access control
- HTML/CSS/JS for building and interacting with the UI
- Familiarity with CORS, API integration, and environment configuration
Advantages:
- Full control over backend logic, security, and performance
- Clean separation of concerns between frontend and backend
- Scalable structure suited for enterprise-grade apps
- Easily debuggable and testable code with fine-grained logic
- No reliance on third-party abstraction layers or low-code limitations
Challenges:
- Requires solid knowledge of multiple technologies (Node, MongoDB, JWT, etc.)
- Development is time-intensive due to manual setup and wiring
- Higher risk of bugs if role checks or validations are missed
- Needs thorough testing to handle edge cases and unauthorized access
- More code to write and maintain as the project scales
Vibe Coding Workflow
Step 1: Describe Your Vision
We are using Replit to perform this task.
Prompt we used: “Build a Multi-User Budget Tracker with Role-Based Access Control (RBAC) Objective: Create a web-based budget tracker that allows users to:
|
After describing the vision, this tool successfully completes the task without any hassle for the developer. It first shares the plan, and after agreeing to it, you get the work done.
However, you will encounter multiple errors during execution. You can instruct the tool to fix them. There is no assurance that the error will be fixed successfully.
Step 2: Iterative Refinement
You can instruct the tool to add features or do more work. Like I asked the tool to create a database, and it did it for me.
Step 3: Deploy or Export
This vibe coding tool allows you to deploy the application in the real world.
Vibe Coding Analysis
Development Time:
10–25 minutes for a typical user
- Prompting and layout generation: ~3–5 minutes
- Design customization (colors, spacing, layout): ~5–10 minutes
- Adding logic via no-code/AI tools: ~5–7 minutes
- Previewing and fixing minor issues: ~2–3 minutes
Required Skills:
- Basic ability to describe UI and logic in clear prompts
- Familiarity with component-based layout and styling terminology
- Visual intuition for form layout, button placement, and UX
- Minimal or no knowledge of traditional coding or debugging needed
- Willingness to iterate based on AI-generated outputs
Advantages:
- Extremely fast for prototyping and building functional UIs
- Accessible to non-developers, marketers, or designers
- Built-in responsiveness and design polish with minimal effort
- Easy to visually adjust components without digging into code
- Encourages experimentation and creative UI/UX design
Challenges:
- Limited support for advanced logic (e.g., RBAC, auth tokens, DB relationships)
- Hard to debug or trace issues in the underlying auto-generated code
- Less flexible for scaling or integrating third-party APIs securely
- Often requires a fallback to traditional coding for real-world use cases
- May produce bloated or inefficient code under the hood
Side-by-Side Comparison
| Aspect | Traditional Coding | Vibe Coding (Replit) |
| Development Time | 3–5 hours | 10–25 minutes |
| Lines of Code Written Manually | ~500+ (backend + frontend + logic) | ~20–40 (prompt + manual fixes) |
| Technical Skill Required | High, full-stack (Node.js, MongoDB, JWT, HTML/CSS/JS) | Low, basic prompting and iteration |
| Customization Potential | Extensive, total control over features and flow | Limited; constrained by tool capabilities |
| Learning Investment | Significant backend and frontend experience required | Minimal; beginner-friendly, less technical |
| Debugging Difficulty | Medium–High; manual troubleshooting and validation | Low–Medium; tool-based suggestions |
| Maintenance Control | Complete, testable, extendable, and modular | Partial; tool-generated, hard to scale cleanly |
| Cost | Free (excluding hosting platforms like Render, Vercel, etc.) | Often requires a subscription for export or collab |
Takeaway
Traditional coding is the clear winner when building a robust multi-user budget tracker with role-based access control. It offers full control over backend logic, authentication, and permission flows, making it ideal for real-world, scalable applications.
However, it requires significant time and technical skill. Vibe coding via Replit is best suited for quick prototypes or internal demos where speed and simplicity outweigh custom access logic. While it's fast and user-friendly, it struggles with complex RBAC scenarios.
Use vibe coding for mockups; choose traditional coding when security, structure, and long-term maintainability truly matter.
Vibe Coding vs Traditional Coding— When should you use each?
Use a traditional coding approach when:
| Scenario | Reasons to Use Traditional Coding |
| Building a production-grade web app | You need full control, code quality, and long-term maintainability |
| Working with a development team | Teams require version control, code reviews, and consistent architecture |
| Building secure systems (e.g., auth, payments) | You need to handle encryption, validation, and error handling carefully |
| Connecting with external APIs and databases | Manual control is needed to handle data flow, edge cases, and integration logic |
| Writing tests and using CI/CD pipelines | Traditional codebases support automated testing and deployment workflows |
| Designing modular, reusable components | You can structure code for reuse and clarity |
| Optimizing performance for large-scale apps | Manual control helps you fine-tune for speed, memory use, and rendering efficiency |
Use vibe coding tools when:
| Scenario | Reasons to Use Vibe Coding |
| Creating a quick prototype or MVP | You can generate a working UI or logic in minutes with minimal setup |
| Building small tools like calculators or landing pages | These don’t need a heavy structure and benefit from fast iteration |
| Learning by example | AI tools show you how code works, which helps beginners understand layout and logic |
| Creating internal dashboards or admin panels | These often need speed over perfect code, especially for non-public tools |
| Solo development with short deadlines | You can skip the boilerplate and focus on feature requests via prompts |
| Exploring design or layout ideas quickly | Vibe tools can help generate multiple UI layouts for experimentation |
| Enhancing productivity during brainstorming | Useful for testing variations of a feature without deep refactoring |
Top vibe coding tools you can try
1. Bolt.new
Bolt.new is an AI-powered coding tool that lets you build and deploy full-stack web or mobile apps right in your browser. It uses text prompts to generate real-time code and supports frameworks like Next.js, Astro, Vue, and Svelte. With no setup required and instant Netlify deployment, it’s perfect for developers and non-coders looking to prototype apps quickly and collaboratively.
Pricing: The Pro version costs $20 per month, the Pro 50 plan costs $50 per month, the Pro 100 plan costs $100 per month, and the Pro 200 plan costs $200 per month.
2. Lovable
Lovable helps users build full-stack web apps using plain English prompts. It automates design, development, and deployment all in one browser tab. With visual editing, GitHub integration, backend support, and one-click publishing, Lovable empowers non-coders to create apps effortlessly and helps developers move faster without boilerplate setup. It's ideal for quickly turning app ideas into real products.
Pricing: Lovable offers a free plan with limited features, but you can also buy the Pro plan for $25/month and the Team plan for $30/month.
3. Cursor
Cursor is an AI-enhanced IDE based on VS Code that boosts productivity through smart code suggestions, in-code chat, and auto-debugging. It understands your entire codebase contextually and can even suggest terminal commands or auto-fix errors. With features like agent mode and codebase-wide chat, Cursor helps developers navigate, refactor, and write clean code more efficiently, all while staying in flow.
Pricing: After a 2-week free trial, you must subscribe to the Pro version for $20/month or the Business version for $40/month.
4. v0 by Vercel
v0 by Vercel is an AI design-to-code tool that transforms natural language prompts into React components. Built for UI development, it uses Tailwind CSS and Shadcn UI and supports direct integration with Figma. Whether you're prototyping interfaces or creating production-ready components, v0 enables fast, responsive layout creation with minimal coding effort, making it ideal for developers and designers alike.
Pricing: You can start with $0/ month and buy the Premium plan for $20/month or the Team plan for $30/month.
5. Replit
Replit is a browser-based coding platform with AI tools for writing, debugging, and deploying applications. It supports over 50 languages and includes built-in hosting, databases, and collaboration features. Its AI agent helps generate and fix code instantly. With Google Docs-style editing and no setup required, Replit makes it easy for both beginners and professionals to build, learn, and share software online.
Pricing: The Starter plan is free to use, but you can buy Replit’s Core plan for $20/month and the Teams plan for $35/month.
Explore More: Top 14 Vibe Coding AI Tools: Bolt, Lovable, Cursor & More
Vibe Coding Isn't the Answer to All Coding Challenges. Here's Why
Vibe coding is a fast and creative way to build software. You just tell an AI tool what you want, and it writes the code for you. This works great for quick projects or small tools. But when it comes to serious apps, vibe coding has limits. Let’s look at why traditional coding still matters.
You Don’t Control the Code
When you use vibe coding, the tool decides how to write the code. You can’t always control how it names things, organizes files, or handles errors. If you need clean, well-structured code, you’re better off writing it yourself.
It’s Hard to Fix Problems
If something breaks in AI-generated code, it’s often hard to debug. The code might be messy or confusing. Vibe tools don’t always include proper testing or validation. In real apps, you need to check if your code works in every case, and vibe coding doesn’t always do that.
It Doesn’t Work for Big Projects
Big apps need a solid structure. You have to plan where files go, how data moves, and how each part connects. Vibe coding can’t design a clean architecture for you. That’s why teams still use traditional coding when they build apps that grow over time.
The Code Is Hard to Update Later
Vibe tools create code that looks okay at first, but it may be hard to understand or change later. If you or another developer wants to improve the app next month, messy code will slow you down. Traditional coding helps you write clear, reusable code from the start.
It Can’t Handle Real Systems Well
If your app connects to things like payment systems, custom APIs, or databases, you’ll need detailed setup and testing. Vibe tools aren’t great at understanding those rules. Traditional coding gives you full control, so you can get things working the right way.
Teams Need Structure
In real-world development, teams use version control, testing, and reviews to ensure the app works and the code is safe. Vibe coding doesn’t support teamwork like Git, branches, or CI/CD pipelines, but traditional coding does.
Vibe coding is fun and fast. But when the project is serious, traditional coding gives you more control, better structure, and stronger results.
Final words
Vibe coding isn’t here to replace traditional coding, it’s here to support it. For quick prototypes, simple tools, and fast UI mockups, vibe coding helps beginners and even experienced developers save time and experiment faster. But when it comes to building secure, scalable, and production-ready applications, traditional coding still leads the way. It offers the control, structure, and long-term reliability that complex systems need.
Use vibe coding to move fast, explore ideas, or build MVPs, but when your project demands precision and performance, traditional coding remains the gold standard. In the end, smart developers use both.
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FAQs
Is vibe coding killing traditional coding?
No, vibe coding isn't replacing traditional coding. It helps with quick prototypes and small tools, but traditional coding is still essential for building secure, scalable, and maintainable applications. Developers use vibe coding for speed, but rely on traditional methods for full control and long-term projects.
Do professional developers actually use vibe coding?
Yes, many professional developers use vibe coding tools to speed up tasks like prototyping, generating boilerplate code, or exploring UI ideas. While they don’t rely on it for complex or production systems, vibe coding helps save time during early development and increases productivity when used alongside traditional coding practices.
How much time can vibe coding actually save?
Vibe coding can save anywhere from 50% to 90% of development time for small tasks, prototypes, or UI components.
What might take 30–60 minutes manually can often be done in 5–10 minutes with AI assistance. However, time savings depend on task complexity, the clarity of prompts, and how much post-generation tweaking is needed.
Will learning Vibe coding make me a better developer?
Yes, learning Vibe coding can improve your development speed, creativity, and problem-solving. It teaches you how to think in terms of outcomes and high-level logic.
While it won’t replace the need to understand real code, it can help you prototype faster, explore new ideas, and focus on building rather than boilerplate, especially when combined with strong traditional coding skills.