Enter a value to begin.
Result
UUID v4 randomness
The tool uses crypto.randomUUID where available and a crypto.getRandomValues fallback with correct version and variant bits. Math.random is never used.
UUID and GUID terminology
GUID is commonly used for UUID-style identifiers, especially in Microsoft ecosystems. Random UUID v4 collision probability is extremely low, but uniqueness is not guaranteed and database constraints still matter.
Examples and limits
Inputs are validated before conversion. Results are practical developer references, not server-authoritative records. All interactive processing remains browser-local.
Security and privacy boundary
Input is parsed deterministically in this browser tab. It is not uploaded, logged, evaluated as code, or sent to a third-party API. Copy and download actions occur only when requested.