About UUID V5
Generate Version 5 UUIDs using SHA-1 hashing with namespaces. More secure than v3 for namespace-based IDs.
Version 5 improves on v3 by using SHA-1 instead of MD5. Recommended for all namespace-based UUID generation.
Frequently Asked Questions
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. It is also known as a GUID (Globally Unique Identifier) in Microsoft systems.
When should I use UUID V5?
Version 5 improves on v3 by using SHA-1 instead of MD5. Recommended for all namespace-based UUID generation.
Are generated UUIDs truly unique?
Yes, practically unique. The probability of collision is astronomically low, especially for Version 4 and 7 UUIDs, making them effectively unique for all practical purposes.
Is this tool free to use?
Yes, this UUID generator is 100% free and processes everything locally in your browser for maximum security and speed.