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UUID Generator

Generate random UUID v4 identifiers for use in databases, APIs, and applications.

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What this tool does

Generates UUID version 4 identifiers — randomly generated 128-bit unique IDs used in databases, APIs, distributed systems and URLs to identify records without a central authority.

Input fields explained
Count
How many UUIDs to generate at once. Maximum 50. You can copy individual UUIDs or copy all at once.
Uppercase
Toggle between lowercase (standard) and UPPERCASE format. Both are valid UUID formats — choose based on your system requirements.
💡 Tips & context
→UUID v4 has 2^122 possible values (~5.3 × 10^36). The chance of a collision is astronomically small.
→Format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx where the 4 indicates version 4.
iFormula / How it works

UUID v4: randomly generated 128-bit identifier. 2^122 possible values.