Online
UUID Generator
Generate universally unique identifiers (UUIDs, also called GUIDs) right in your browser. Pick a version, click Generate, and copy the result — nothing is sent to a server.
Console
uuid-generator
Random. The most common choice.
—Operation
- 01 Choose a UUID version: v1 (time-based), v4 (random) or v7 (time-ordered).
- 02 Click Generate to produce a new UUID.
- 03 Click Copy to put it on your clipboard.
Reference
- Which UUID version should I use?
- Use v4 (random) for general-purpose unique IDs. Use v7 when you want time-ordered, sortable IDs that index well in databases. Use v1 only when you specifically need a timestamp-based identifier.
- What is a v7 UUID?
- A version 7 UUID embeds a Unix millisecond timestamp in its most significant bits, so the IDs sort chronologically while still being globally unique. It is recommended for new systems.
- Are the UUIDs generated on a server?
- No. Every UUID is generated locally in your browser using the Web Crypto API. Nothing is transmitted or stored, so it is safe for sensitive use.