UUID Generator for JavaScript
Free online uuid generator with JavaScript code examples
Working with uuid generator in JavaScript? Our free online uuid generator helps JavaScript developers format, validate, and process data instantly. Below you will find JavaScript code examples using crypto.randomUUID() (built-in) so you can achieve the same result programmatically in your own projects.
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Open UUID GeneratorJavaScript Code Example
// Modern browsers and Node.js 19+
const id = crypto.randomUUID();
console.log(id); // e.g., 550e8400-e29b-41d4-a716-446655440000Quick Setup
Library: crypto.randomUUID() (built-in)
// Built-in in Node.js 19+ and modern browsersJavaScript Tips & Best Practices
- crypto.randomUUID() is built-in — no package needed
- For older Node.js, use the 'uuid' npm package
- Returns a lowercase string in standard UUID format