UUID Validator

Paste a string to check if it is a valid UUID and see its version and variant. The validator accepts the standard 8-4-4-4-12 hex format (with or without hyphens in input; output is normalized).

Valid UUIDs are reported with their version (1, 4, 5, 7, or nil) and RFC 4122 variant. Use this tool to verify IDs from logs, APIs, or databases before using them. Need to generate new UUIDs? Use the main generator or bulk generator.