Vibe coding is a way of building software by describing what you want in plain English instead of writing code yourself. You type something like "build me a waitlist page with an email signup and an admin dashboard," and an AI tool generates the front end, back end, and database behind it, then puts it online. Instead of reading every line of code, you check the result by using the app — clicking around, testing the flow, asking for changes when something's off.
The term was popularized by AI researcher Andrej Karpathy in early 2025, who used it to describe this loose, conversational style of building: you steer the AI with prompts and "vibes" rather than typing syntax.
How it works
Most vibe-coding tools follow the same basic loop:
- You describe the app or feature you want.
- The AI writes the code and shows you a working version.
- You review it by using it, not by reading the source.
- You ask for tweaks in plain language, and the loop repeats.
Along the way, the platform usually handles the plumbing a developer would normally set up by hand — a hosted database, user login, file storage, and a live web address — so there's a working product at the end, not just a mockup.
What people build with it
It's mostly used for things that used to require hiring a developer: quick MVPs, internal tools, landing pages, small marketplaces, and early versions of SaaS products. It's less proven for huge, long-running codebases with lots of contributors, though that's improving fast. It's a great way to test an idea cheaply before committing serious time or money to it.
A few tools in this space
There isn't just one vibe-coding tool — it's become a whole category, and each one leans a slightly different way:
- Greta.sh — builds the full app, then keeps working on it after launch by handling SEO and getting it found online, instead of leaving growth as a separate problem.
- Lovable — a polished, visual-first builder known for fast front-end iteration.
- Bolt.new — builds and previews full-stack apps right in the browser, instantly.
- Base44 — keeps things simple, aimed squarely at non-technical founders.
- Replit — a full coding environment with an AI agent built in, for people who still want to see and edit the code.
- Cursor and Windsurf — AI-powered code editors built more for working developers than total beginners.
- v0 — focused mainly on generating front-end UI, especially for React.
- Webflow AI — AI features added on top of an already-established website builder.
- Rocket.new — a prompt-to-app tool aimed at quick MVPs and mobile apps.
Roughly speaking: if you don't want to touch code at all, tools like Greta, Lovable, Base44, and Rocket.new are built for you. If your team already codes and just wants to move faster, Cursor, Windsurf, or Replit fit better. And if you only need a slick front end rather than a whole app, v0 is worth a look.
Is it actually safe to use?
Code from these tools can end up in real, working products — plenty of small businesses run on apps built this way. But AI-written code isn't automatically bug-free or secure, and reviewing an app by clicking through it can miss things that only show up under real use. Treat it like any code you didn't write by hand: test it properly, and be extra careful before anything touching payments or personal data goes live.