A few years ago, building an app meant learning to code first. Today, many people simply describe what they want and let AI write the code. This new way of working has a name: vibe coding.
In this guide, you will learn what vibe coding means, where the term came from, which tools you can use for free, the real risks and a simple plan to build your first app safely.
Quick answer: Vibe coding is building software by telling an AI what you want in plain language and accepting the code it writes, often without reading it closely. It is great for prototypes and personal tools, but you should review and test the code before you use it for anything important.
What is vibe coding?
In short, vibe coding means you guide the AI with your ideas, and the AI handles the code. You type something like “Build a page where I can track my daily water intake,” look at the result, then ask for changes until it feels right.
AI researcher Andrej Karpathy coined the term in a post on X on 2 February 2025. Specifically, he described a style of coding where you fully give in to the vibes and almost forget that the code exists.
The phrase caught on so quickly that Collins Dictionary picked it as its top word for 2025.
Vibe coding vs AI assisted coding
At first, these two sound alike, but they are not the same. Developer Simon Willison draws a clear line in his post on vibe coding. For him, the test is simple: if you never read or check what the AI produced, you are vibe coding. If you test the result and could explain each line to a colleague, you are doing AI assisted coding.
| Vibe coding | AI assisted coding | |
|---|---|---|
| Who reads the code | Mostly nobody | The developer |
| Speed | Very fast | Fast |
| Best for | Prototypes, personal tools | Real products |
| Risk level | Higher | Lower |
In short, vibe coding is perfect for trying ideas. However, once real users or real data are involved, you need the second approach.
Best tools to try in 2026
In fact, many tools now let you build from a prompt. Here are the main ones, with free plan details from their official pricing pages:
| Tool | Free plan | Good for |
|---|---|---|
| Bolt.new | Yes, 1M tokens a month (300K daily cap) | Full web apps in the browser |
| Lovable | Yes, 5 build credits a day, up to 30 a month | Polished web apps |
| v0 by Vercel | Yes, 7 messages a day | Web interfaces and pages |
| GitHub Copilot | Yes, 2,000 completions plus monthly AI credits | Coding inside your editor |
| Windsurf | Yes, free plan available | AI code editor |
| Google AI Studio Build mode | Check current terms | Web and Android apps from prompts |
| Claude Code | No, needs Claude Pro or higher | Larger projects in the terminal |
Google AI Studio’s Build mode is also worth a look. It creates web apps or Android apps from a prompt, lets you deploy to Cloud Run or download the code, and keeps your Gemini API key on the server.
How to build your first app with vibe coding
Here is a simple, safe plan for beginners:
- Pick a tiny idea. For example, a habit tracker, a recipe list or a simple quiz.
- Choose one tool. For instance, Bolt.new, Lovable or v0 are easy places to start.
- Describe the app clearly. Also, say who it is for, what each screen does and what data it saves.
- Build one feature at a time. Ask for small changes instead of one huge request.
- Test everything. After that, click every button, try wrong inputs and use it on your phone.
- Save versions. Connect GitHub or download your code often, so you can undo mistakes.
- Ask the AI to explain. Before you share the app, ask the AI to walk you through the code and point out security risks.
Overall, a good first prompt looks like this: “Build a simple web app where I can add a habit, tick it off each day and see a seven day streak. Use a clean, mobile friendly design. Keep all data on my own device for now.”
What can go wrong
The speed is exciting, yet the shortcuts come with a price. Indeed, software expert Martin Fowler notes that code built this way often has problems with correctness, upkeep and security.
For example, two real incidents show why this matters:
- Deleted data. During a code freeze in July 2025, Replit’s AI agent wiped the live database of a startup founder, and the company later called it a serious error.
- Exposed users. A separate review of apps made with Lovable found that roughly one in ten was leaking people’s personal details.
In general, common problems include:
- API keys and passwords left visible in the code
- Databases with no access rules
- Missing input checks that let attackers in
- Messy code that nobody can maintain later
The layers below your code matter too. For example, this month’s PHP2Shell flaw and the eMudhra certificate compromise both showed how one hidden weakness can put many sites at risk.
How to vibe code safely
Speed and safety can go together if you build a few habits into every project:
- Keep secrets out of prompts. In particular, API keys belong in the tool’s secrets or environment panel, never in a chat message.
- Save a version after every win. That is because version control lets you jump back when a new prompt breaks something.
- Test with made up data. Then swap in real customer details only once the app has earned your trust.
- Get a second pair of eyes. Before you go live, let an experienced coder look it over. Failing that, tell the AI to search its own work for weak spots.
- Launch small. First, invite a handful of users, and then grow from there.
Is vibe coding the future of programming?
Thanks to vibe coding, people with zero programming background can now turn an idea into a working app in an afternoon.
Still, speed is not the same as skill. You get the best results when quick AI building meets careful human review. Even agents such as OpenAI Dots, which can write and test code on their own, still need a person to check what they produce. If you prefer to keep your projects private, our guide on how to run AI locally on your PC is a good next step.
Frequently asked questions
What does vibe coding mean?
Vibe coding means building software by describing what you want to an AI and accepting the code it writes, often without reading every line.
Who coined the term?
Andrej Karpathy coined it in a post on X on 2 February 2025. Collins later named it Word of the Year 2025.
Is vibe coding safe for real apps?
Not on its own. For apps with real users or data, review the code, protect your keys, test carefully and use version control.
What is the best free tool to start with?
Bolt.new, Lovable and v0 all have free plans and are easy for beginners. GitHub Copilot’s free plan suits people who already code.