Question 1

What is a UUID and why is a random UUID generator needed?

Accepted Answer

A UUID (Universally Unique Identifier) is a standard for creating unique identifiers. The random UUID generator creates unique strings that are used in development to identify records in databases, create session tokens, and unique keys.

Question 2

How many UUIDs can be generated simultaneously?

Accepted Answer

Our generator allows you to create up to 100 UUIDs at once. This is convenient for bulk populating databases, testing applications, and creating large sets of unique identifiers.

Question 3

Do the generated UUIDs comply with standards?

Accepted Answer

Yes, all generated UUIDs comply with RFC 4122. They have the correct format (8-4-4-4-12 characters) and use cryptographically strong algorithms to ensure uniqueness.

Question 4

Can UUIDs be used in different systems?

Accepted Answer

UUIDs are designed for use across various systems and platforms. They are compatible with most databases, programming languages, and frameworks, making them a universal solution for creating unique identifiers.

Question 5

Is it safe to use an online UUID generator?

Accepted Answer

Our generator works entirely in your browser — no data is sent to the servers. Generation occurs locally using secure algorithms, ensuring the confidentiality and security of your UUIDs.

Question 6

What is the probability of a UUID collision?

Accepted Answer

The probability of a UUID collision (especially for Version 4 UUIDs, which are randomly generated) is extremely small, making them practically unique. An astronomical number of UUIDs would need to be generated to have a reasonable chance of collision.

Question 7

What is the difference between UUID versions (v1, v3, v4, v5)?

Accepted Answer

UUID v1s are time-based and MAC address-based. V3 and V5 are based on hashes of namespaces and names. V4s are based on random or pseudo-random numbers. Version 4 is the most common for random unique identifiers.

Question 8

Are UUIDs suitable for database primary keys?

Accepted Answer

Yes, UUIDs are often used as database primary keys, especially in distributed systems, due to their global uniqueness. However, they can impact index performance compared to sequential integers due to their random nature.

Random UUID Generator

Random UUID Generator: Create Unique Identifiers Online

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