Frontend Vibe Coding will Destroy your Website in Production

So I was vibe coding this React app and the AI seemed to be crushing it. The layout was done, the components looked fine, and I felt like a 10x engineer. Until I looked at the code. What I saw was daunting — infinite render loops, messy state management that made no sense, and a UI that broke the second I changed even one pixel. So let’s talk about why frontend vibe coding is actually a terrible experience for anything more complex than a to-do list.

First of all, AI is excellent at generating a single component that looks right in isolation, but it struggles to build a a cohesive system.

One prompt might give you:


padding: 16px;

The next gives you:


padding: 1.2rem;

And the third hardcodes:


margin-top: 20px;

You end up with a broken style system where spacing, shadows, and border radius are subtly wrong everywhere, making the app feel cheap and inconsistent.

Apart from that, there are responsiveness issues. You might vibe-code a beautiful dashboard that looks perfect on your 1440p screen. However, because you didn’t explicitly prompt for mobile breakpoints or flex-wrap behavior, the entire layout shatters on a phone screen — requiring a manual rewrite that takes longer than coding it correctly the first time.

Then come framework-specific issues. If you’re generating React code while vibe coding, you must understand that React requires strict adherence to lifecycle and rendering rules. AI often generates code that runs, but is fundamentally broken.

For example, let’s talk about the useEffect hook. AI loves to stuff logic into useEffect to “make it work” when it encounters state issues.


useEffect(() => {
  fetchData();
});

Missing a dependency array can cause infinite render loops, race conditions where data flickers between old and new states, or API calls firing 10 times per second.

Vibe coding also creates chaos in state management. AI rarely plans for global state. Every time you ask for a feature, it just adds another useState at the top level.


const [user, setUser] = useState(null);
const [todos, setTodos] = useState([]);
const [tags, setTags] = useState([]);

This leads to massive prop drilling — passing data down 10 layers — making the code unmaintainable. And when you finally try to move to Context or Redux/Zustand, the AI often hallucinates a refactor that breaks the entire app’s data flow.

Then there’s the re-rendering issue. AI writes functional code — not performant code. It will happily define complex objects or functions inside a component body without memoization.


const expensiveObject = {
  data: computeHeavyData()
};

Without useMemo or useCallback, typing a single character in a form can trigger a re-render of 50 heavy child components — causing noticeable lag.

Now let’s talk about business context and logic gaps. Frontend is the gatekeeper of business rules. It validates logic before sending data to the server. AI implies it understands your business — but it doesn’t.

If you ask AI to “hide the admin button if the user isn’t an admin,” it might generate:


<button style={{ display: 'none' }}>Admin</button>

The problem? The button is still in the DOM. A tech-savvy user can inspect the element, unhide it, and click it. That’s insecure. Security must be enforced on the backend — not just hidden in the UI.

AI also rarely handles loading states, error boundaries, or empty states. What happens if the API returns 500? What if the user has no data? You often end up with a fragile app that crashes with a white screen the moment a network request fails.

Another example — imagine building a fintech app. AI might handle currency using standard JavaScript floats:


100.10 + 200.20 // 300.30000000000004

It doesn’t understand that currency requires precise decimal handling using BigInt or dedicated decimal libraries.

And finally, the most frustrating experience — one small change breaks everything.

Let’s say you have a working Todo list. You ask the AI: “Add a feature to tag todos.” It adds tags — but accidentally rewrites your TodoList component and removes the Delete functionality you added three prompts ago. Now you’re debugging something that wasn’t even broken.

As your React files grow larger, they exceed the AI’s context window. It starts forgetting imports or the UI library you installed. It might suddenly import Button from Material UI even though you’re using Tailwind UI — crashing your build.

These — along with many more reasons — are why frontend vibe coding still feels like a mess. Let me know your thoughts in the comments section. If you found this insightful, don’t forget to drop a like and subscribe for more.