UUID Generator (v1 & v4)
Generate bulk UUIDs (v1 & v4) with customization options.
Configuration
Randomly generated
Hyphens
Uppercase
Generated UUIDs
0
How to use
- Select UUID version (v4 random, v1 time-based, v3/v5 name-based).
- For v3/v5, enter a Namespace UUID and a Name.
- Adjust the number of UUIDs to generate.
- Toggle Hyphens or Uppercase options as needed.
- Click 'Generate UUIDs' to create new identifiers.
- Use the Copy button to copy the list to clipboard.
About UUID
UUID (Universally Unique Identifier) is a 128-bit label used for information in computer systems.
UUID v4 (Random)
Generated using random numbers. The probability of collision is extremely low.
UUID v1 (Time-based)
Generated using the current time and MAC address. Guaranteed unique across space and time.
UUID v3 (MD5) & v5 (SHA-1)
Generated from a namespace and a name. Deterministic: same namespace + same name = same UUID.