Online UUID Generator - Version 3

UUID Version 3 generates identifiers based on a cryptographic hash (MD5) of a namespace and a user-defined name. This method ensures that the same inputs will always produce the same UUID, making it suitable for cases where deterministic IDs are needed.

Pros:

• Deterministic: Consistently generates the same UUID for the same input, which is useful for lookups.
• Collisions Avoidance: Low risk of collisions due to the use of the MD5 hashing algorithm.

Cons:

• Not Truly Random: Since it’s based on hashing, UUID v3 is not suitable for use cases that require randomness.
• Weak Hashing: Uses MD5, which is considered weak by modern cryptographic standards. Consider Version 5 instead.

Best for: Generating unique IDs from a consistent source, such as namespaced resources (like file paths or usernames) where deterministic results are needed.

Learn more about other UUID versions: Version 1, Version 4, Version 5, Version 6, Version 7 or go back to Online UUID Version 3 Generator