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UUID Generator
Generate UUIDs v4 instantly — one or dozens at a time.
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About UUID Generator
A UUID (Universally Unique Identifier) is a 128-bit identifier standardized by RFC 4122. Version 4 UUIDs are randomly generated and have near-zero probability of collision, making them ideal for use as primary keys in databases, session tokens, file names, and API identifiers.
This tool uses the browser's built-in crypto.randomUUID() API where available (cryptographically secure), falling back to a Math.random-based implementation. All generation is client-side — no data leaves your browser.