What this tool does
Generate random UUID v4 identifiers individually or in batches. Choose uppercase or a hyphen-free format to suit your needs, then copy the results.
- The number is limited to 1 to 100 to prevent misuse and huge output.
- Capitalizing and removing hyphens only changes the display, not the random bytes.
- Outputs one UUID per line for easy copying of lists.
How to use it
- Enter the number of spawns from 1 to 100.
- Choose whether to capitalize and retain hyphens.
- Click "Generate UUID".
- After checking the list click "Copy All".
Common uses
- Create test data, object IDs, and idempotent keys.
- Batch prepare database migration or interface sample identifier.
- Generate random identities suitable for distributed systems.
UUID Generator Features
Generate 1 to 100 UUID v4 in batches using cryptographic random sources, and control case and hyphen. Review the result, then copy it for use.
FAQ
Which UUID version was generated?
This page generates securely randomized UUID v4 identifiers with the version digit set to 4.
UUID must not be repeated?
No finite random space is mathematically guaranteed to never repeat, but the collision probability of canonical v4 UUIDs is extremely low in normal use.
Is it still a UUID after removing the hyphen?
The random content is the same, but the 32-bit compact string is no longer in the standard hyphenated text format; selected as required by the receiving system.