UUID Generator

Generate cryptographically secure UUID v4 values. Single or bulk generation.

Runs entirely in your browser — nothing is uploaded or stored on any server.

About UUID Generator

Updated Jan 2025

The UUID Generator creates version 4 UUIDs (random) using crypto.randomUUID() — the browser's cryptographically secure random number generator. Generate a single UUID or up to 100 at a time. UUIDs are commonly used as primary keys in databases, session identifiers, and unique resource IDs.

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