Toolwinder
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UUID Generator

Generate UUIDs v1, v4, and v5. Runs completely in your browser.

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About This Tool

Generates UUIDs in v1, v4, or v5 format for whenever code, a database schema, or a config file needs a unique identifier. Batch-generate up to 50 at once and copy them all with a single click.

Frequently Asked Questions

What version of UUID should I generate?+
Version 4 is the most common, generating fully random identifiers. Version 1 is based on the host's system time, and Version 5 generates namespace-name SHA-1 deterministically.
Are these UUIDs secure and cryptographically strong?+
Yes. Version 4 uses high-entropy random generation algorithms to ensure that the probability of duplicates is practically zero.
Can I generate multiple UUIDs at once?+
Yes. You can select quantities ranging from 1 to 50 UUIDs per generation, and quickly copy all results to your clipboard with a single click.

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