About UUID Hut

UUID Hut is a free online UUID generator for creating, validating and inspecting universally unique identifiers.

What you can do on UUID Hut

• UUID v4 Generator – Create random version 4 UUIDs using the browser's cryptographic random number generator.
• UUID v1 Generator – Create time-based version 1 UUIDs.
• Bulk Generation – Generate many UUIDs at once in upper or lower case, with or without dashes.
• UUID Validator – Check whether a string is a well-formed UUID.
• UUID Parser – Inspect an existing UUID to see its version, variant and embedded details.

Open the UUID Generator

How it works

• Free to use: no account, sign-up or payment is required.
• UUIDs are generated, validated and parsed locally in your browser using the Web Crypto API. They are not sent to our servers.
• Works in modern desktop and mobile browsers, with nothing to install.
• The interface is available in English and Chinese.
• The site is supported by advertising, which keeps every tool free.

Who runs UUID Hut

UUID Hut is designed, written and maintained by an independent developer who prefers small, focused tools over bloated apps. Speed, a clean interface and careful handling of your data come first.

Why we built it

Developers need unique identifiers all the time, for database keys, test fixtures and request IDs, and opening a terminal just to generate one breaks the flow. UUID Hut gives you correctly formatted IDs instantly, generated on your own device with the Web Crypto API.

Feedback

Suggestions and bug reports directly shape what gets improved next. Send yours through the Contact page.