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UUID Generator (v4)

Generate UUID v4 values (cryptographically secure). Create them in bulk.

Generate random UUID v4 values (any quantity you need) to use as unique identifiers for records, sessions, or files.

How to use UUID Generator

  1. Choose how many UUIDs to generate.
  2. Click generate.
  3. Copy the list of UUIDs.

Frequently asked questions

Can UUID v4 values collide?

The odds are effectively zero, since each one is generated from 122 random bits.

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🔒 UUID Generator (v4) runs entirely in your browser — the data you enter is not sent to any server. Free, no sign-up required. See145 free dev tools more.