What is UUID / ULID?
UUIDs (universally unique identifiers) are 128-bit values that are practically impossible to repeat, ideal as database primary keys, session identifiers or file names without central coordination. This tool generates UUID v4 (random) and also ULID, a modern, time-sortable alternative.
Generate one or several at once and copy them with a click. UUIDs avoid collisions when creating records from multiple clients; ULIDs add chronological order, useful for keys you want to be sortable. They're generated with your browser's cryptographic generator.
Frequently asked questions
Is it free?
Yes, all NewKit tools are completely free.
Is my data sent to a server?
No. Processing happens 100% in your browser, so it is safe even for sensitive data.