About this tool
Generate and validate UUIDs locally
Use this UUID tool for test records, mock payloads, database IDs, and quick validation. UUID generation uses the browser crypto API when available.
Supported inputs and outputs
UUID v4 generation, UUID validation, bulk pasted UUID checks, lowercase and uppercase output.
Privacy note
UUID Generator and Validator runs in your browser. DataZier does not upload your pasted text or selected files for processing.