UUID Generator
Generate unique identifiers instantly
How UUID Generation Works
The UUID Generator creates version 4 universally unique identifiers using cryptographic random number generation. Each UUID is a 128-bit value displayed as 32 hexadecimal digits in a 8-4-4-4-12 pattern.
Formula
Format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx (where 4 indicates version, y is 8, 9, a, or b)
Key Features
- ✓Generate UUID v4 identifiers
- ✓Bulk generation up to 50 at once
- ✓Toggle uppercase/lowercase format
- ✓Option to include or exclude hyphens
- ✓Copy individual UUIDs or all at once
Pro Tip
UUID v4 uses random or pseudo-random numbers. The probability of generating a duplicate is astronomically low — roughly 1 in 5.3 x 10^36. UUIDs are commonly used as database primary keys, session identifiers, and distributed system identifiers.
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