Code Without
Boundaries

The most powerful online compiler that supports 8+ programming languages. Write, run, and share code instantly — all in your browser.

8+
Languages
100K+
Developers
1M+
Code Runs

Frequently Asked Questions

Everything you need to know about Syntaxz

Yes! Syntaxz is completely free to use. You can compile and run code in all supported languages without any cost or registration required.

Experience the Magic

See your code come to life with our advanced editor and instant execution

JavaScript
// Modern JavaScript ES6+
const greetUser = (name) => {
  return class="text-yellow-300">`Hello, ${name}! Welcome to Syntaxz.`;
};

console.log(greetUser(class="text-yellow-300">"Developer"));