What is vibe coding? A plain-English guide for 2026

Vibe coding, defined

The term was coined in early 2025 by Andrej Karpathy, co-founder of OpenAI and former head of AI at Tesla, in a post describing a new way of programming where you "fully give in to the vibes" — you tell an AI what you want, accept what it writes, and iterate by conversation instead of by editing code yourself.

In its purest form: you never read the code. You describe, the AI builds, you look at the result, and you describe again. The programming language becomes English.

In practice, most professional use sits somewhere on a spectrum. On one end is the pure "never look at the code" mode — great for prototypes and personal tools. On the other is AI-assisted engineering, where developers review every diff. The sweet spot for building websites is usually in the middle: you describe sections, review the rendered result in a browser, and only inspect code when something misbehaves.

How vibe coding actually works

A typical vibe coding session for a website looks like this:

1. You describe the goal. "Build a one-page site for a coffee roastery: hero with a headline, a menu section, opening hours, a contact form. Dark, warm palette."
2. The AI writes the code. A tool like Claude Code or Codex generates the HTML, CSS, and JavaScript — often a complete, working site in one pass.
3. You react to the result. "Make the hero image full-width. The menu prices should be right-aligned. Add a section about our roasting process."
4. Repeat until it's right. Each instruction is a small, cheap iteration. The feedback loop is minutes, not days.

The tools doing the heavy lifting are AI coding agents — Claude Code, Codex, Cursor, and friends — which don't just autocomplete lines but plan multi-file changes, run commands, and check their own work.

Vibe coding examples

Where the approach shines today:

• Marketing and portfolio websites. The classic case: content-driven sites with clear structure. An experienced designer can vibe-code a polished five-section site in an afternoon.
• Internal tools. Dashboards, calculators, converters — software that used to be "not worth a developer's time" now takes an hour.
• Prototypes and MVPs. Founders sketch working products before hiring an engineering team.
• Automations and scripts. One-off data cleanups, file processing, small integrations.

Where it gets riskier: large applications with complex state, payments, authentication, and anything security-critical. Not because AI can't write that code — but because nobody in the loop is verifying it deeply. That gap is exactly why "is vibe coding safe?" became its own search query.

Is vibe coding safe?

For a static marketing website: yes, with normal review. The generated code is HTML and CSS you can see rendered in a browser; the failure modes are visual, not catastrophic.

Three guardrails make vibe-coded client work genuinely safe:

• Review the rendered result, always. You don't need to read every line of code, but you do need to click through every page, form, and breakpoint.
• Keep secrets out of the loop. API keys and credentials don't belong in prompts or generated files.
• Never let AI touch production directly. AI writes drafts; a human publishes. This is the principle VibeMS is built around — even when Claude connects to a live site via MCP, every change lands as a draft that a person reviews and publishes.

The part everyone forgets: after the build

Here's the uncomfortable truth about vibe-coded websites. The build is the easy, joyful 10%. Then the site goes to a client, and the questions start:

• "Can I change the opening hours myself?"
• "How do I add the new team member?"
• "Where do the contact form messages go?"

A vibe-coded site is, structurally, a pile of custom code — beautiful, fast, and completely opaque to a non-technical owner. WordPress solved this problem twenty years ago with an admin area, at the cost of plugins, updates, and weekly security patching. Vibe coding un-solved it.

Frequently asked questions

Is vibe coding the same as no-code?

No. No-code tools (Webflow, Wix) constrain you to their building blocks. Vibe coding produces real, unconstrained code — you get the full power of custom development with the interface of a conversation.

Do I need to know how to code to vibe-code?

For personal projects, no. For client work, you need enough web literacy to judge the output: does it look right, load fast, work on mobile? Design taste matters more than syntax knowledge.

What tools do I need to start?

An AI coding agent (Claude Code, Codex, or Cursor), a browser, and a place to host the result. Our step-by-step Claude tutorial walks through the whole flow.