UUID Generator
Settings
Basic Settings
Quantity
UUID Information
UUID Version 4Random UUID with 122 bits of entropy
Format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxxLength: 36 characters (including hyphens)
Generated UUID
Click "Generate UUID" to create UUIDs
About UUID Generator
Our free online UUID Generator creates universally unique identifiers in various formats. Generate single or multiple UUIDs, choose between v1, v4, and other versions. Essential for database primary keys, API identifiers, and distributed systems.
Key Features
Multiple Versions
Generate UUID v1 (timestamp) and v4 (random).
Bulk Generation
Generate multiple UUIDs at once.
Format Options
Output with or without hyphens, uppercase or lowercase.
100% Client-side
All generation happens in your browser - your UUIDs stay private.
Copy Support
One-click copy for individual or all UUIDs.
Instant Generation
Generate thousands of UUIDs in seconds.
How to Use
- 1Select the UUID version (v1 for timestamp-based, v4 for random).
- 2Choose how many UUIDs to generate.
- 3Click 'Generate UUID' to create new identifiers.
- 4Copy individual UUIDs or all at once.
Pro Tips
- 💡UUID v4 (random) is most commonly used and recommended for most cases.
- 💡UUID v1 includes timestamp and MAC address - use v4 if privacy matters.
- 💡UUIDs are designed to be globally unique without central coordination.
- 💡The probability of UUID collision is astronomically low (1 in 2^122 for v4).