UUID Validator & Parser
Validate and parse UUID formats, identify versions (v1-v5), extract variants, and decode timestamps.
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UUID Versions:
- v1: Time-based, includes MAC address
- v3: Name-based using MD5
- v4: Random (most common)
- v5: Name-based using SHA-1
How to Use UUID Validator
- 1
Paste or type your UUID to validate.
- 2
Click "Validate UUID" to check format and extract information.
- 3
View UUID version, variant, and format details.
- 4
For v1 UUIDs, see the extracted timestamp.
Frequently Asked Questions
What UUID versions exist?▾
UUID v1 (time-based), v3 (MD5 name-based), v4 (random), and v5 (SHA-1 name-based). Version 4 is most common.
What is the UUID format?▾
UUIDs are 128-bit identifiers displayed as 32 hexadecimal digits in 5 groups: 8-4-4-4-12 (e.g., 550e8400-e29b-41d4-a716-446655440000).
Can UUIDs collide?▾
While technically possible, UUID v4 collision probability is astronomically low - about 1 in 2^122, making collisions practically impossible.
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