Generate UUIDv4 values in the browser, copy one or many identifiers, and choose hyphenated or compact formats.
The generator creates UUIDv4 values in the browser with Web Crypto, supports bulk quantity, individual or full-list copy, and standard, no-hyphen, or URN formats. Generated values are not saved or sent by the app.
Choose the quantity, select the format, enable uppercase if needed, and copy one UUID or the full list. The shared link preserves only settings and generates new UUIDs when opened.
Choose how many UUIDs to create and how they should appear for copying.
Generate from 1 to 500 UUIDs at a time.
The transform changes display only; the generated base remains canonical UUIDv4.
The shared link recreates only the settings and generates a fresh list for whoever opens it.
The current link includes only quantity, format, and uppercase. Generated UUIDs stay out of the URL.
Generation happens in the browser with Web Crypto. This tool does not send generated UUIDs to the server.
UUIDs are identifiers, not passwords, secret tokens, encryption keys, or authorization grants.
Version 4 uses random bytes with fixed version and variant markers from the current UUID standard.
Use standard hyphenated text for common APIs, no hyphens for compact fields, or URN when a system expects that prefix.
UUIDs have a low collision chance, but they should not control access or replace purpose-built random tokens.
A UUID is a 128-bit identifier used to name records, objects, and events with a low chance of collision.
Yes. This version generates random UUIDv4 values only, with version and variant bits set before display.
No. Generation happens in the browser, and generated values do not enter the URL, hash, favorites, or server state.
Not recommended. UUIDs are identifiers. Use password or purpose-built token generators for credentials and authorization.
Standard keeps hyphens, no hyphens compacts the text, and URN adds the urn:uuid: prefix for systems that expect that format.
No. The link includes only quantity, format, and uppercase settings. Whoever opens it gets a fresh list.