UUID (Universally Unique Identifier) is a 128-bit identifier used to uniquely identify information in distributed systems. Learn more: - [Wikipedia – Universally Unique Identifier](https://en.wikipedia.org/wiki/Universally_unique_identifier) - [RFC 4122 – UUID](https://www.rfc-editor.org/rfc/rfc4122)

What is the difference between UUID v1, v4, and v7?

UUID v1 is time-based, UUID v4 is randomly generated, and UUID v7 is time-ordered with better database index performance. UUID v7 is designed to be sortable while maintaining randomness.

When should I use UUID v4?

UUID v4 is commonly used when you need a simple, random, and collision-resistant identifier without exposing time or system information.

When should I use UUID v7?

UUID v7 is suitable for databases and systems that benefit from time-ordered identifiers, such as logs or high-write tables.

Are UUIDs secure or encrypted?

No. UUIDs are not encrypted and should not be used as security tokens or secrets. They are identifiers, not authentication mechanisms.

Is this UUID generator safe to use?

Yes. UUIDs are generated locally in your browser. No data is sent to or stored on any server.

Who should use a UUID generator?

UUID generators are widely used by developers for database primary keys, testing, API identifiers, and distributed systems.

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UUID Generator

Generate UUIDs instantly in multiple versions such as v1, v4, and v7. Ideal for developers, databases, testing, and unique identifiers.

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UUID Generator