./uuid-generator
Free UUID Generator Online
Generate cryptographically random UUID v4 identifiers (RFC 4122). Use one at a time or generate up to 1000 UUIDs in bulk — all in your browser.
How to Use
- 01A UUID is generated for you automatically.
- 02Click "Generate New" for a fresh one, or use bulk mode for multiple.
- 03Copy individual UUIDs or copy the entire list with one click.
FAQ
What is UUID v4?▼
UUID v4 is a 128-bit identifier generated from random numbers. It follows the RFC 4122 specification and has an extremely low collision probability.
Are these UUIDs cryptographically secure?▼
Yes. This tool uses the browser crypto.getRandomValues() for randomness, which is suitable for most use cases.
How many UUIDs can I generate at once?▼
Up to 1000 in a single batch. For larger volumes, generate multiple batches.