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UUID Generator

Generate UUID v4 instantly. Bulk generate up to 50 UUIDs. Copy to clipboard.

Count

Format

Click Regenerate to generate UUIDs

How to Use

Select a UUID version — V4 (random) is recommended for most use cases.
Choose how many UUIDs to generate (1–100) using the quantity selector.
Click Generate, then copy individual UUIDs or export the entire list.

Frequently Asked Questions

What is a UUID?: A UUID (Universally Unique Identifier) is a 128-bit identifier used in computer systems to uniquely label resources. It looks like: <code>550e8400-e29b-41d4-a716-446655440000</code>. UUIDs are standardized by RFC 4122.
What is the difference between UUID V1 and V4?: UUID V1 is generated using the current timestamp combined with the host's MAC address, making it traceable. UUID V4 is randomly generated, offering better privacy and is the preferred choice for most applications.
Can two generated UUIDs ever be the same?: The probability of a collision is approximately 1 in 5.3×10³⁶ — so low it is considered practically impossible in any real-world scenario.
Are UUIDs case-sensitive?: No. UUIDs are case-insensitive. <code>550e8400-E29B-41d4-A716-446655440000</code> and its lowercase version refer to the same identifier.