UUID Generator
Generate random RFC 4122 v4 UUIDs instantly. Bulk-generate up to 20 at once.
Generated UUID
90e25deb-bcd6-43ab-92e6-64c069b0e980
Bulk Generate
UUID Generator creates random RFC 4122 v4 UUIDs instantly. UUIDs (Universally Unique Identifiers) are 128-bit numbers used to uniquely identify information across distributed systems. Use this tool to generate unique identifiers for databases, transactions, sessions, and any application that needs guaranteed uniqueness.
Frequently Asked Questions
What is a UUID? +
A UUID is a 128-bit number used to uniquely identify information in computer systems. It's extremely unlikely two UUIDs will ever be the same.
What is UUID v4? +
UUID v4 is generated from random numbers. It's the most common UUID version and suitable for most development and testing scenarios.
When would I need UUIDs? +
UUIDs are useful for database primary keys, transaction IDs, session tokens, and any situation requiring unique identifiers across distributed systems.
Frequently Asked Questions
- A UUID (Universally Unique Identifier) is a 128-bit identifier. v4 UUIDs are randomly generated. The collision probability is astronomically low, making them effectively unique across distributed systems.