# UUID Generator

> Generate RFC 4122 UUIDs (v4 and v7) in bulk, or validate and reformat pasted IDs. Copy a list for database seeds, test fixtures, and idempotency keys. Uses the Web Crypto RNG so IDs are created on-device with no telemetry.

Runs in your browser. Nothing is uploaded.

[Generate](https://toolbuddy.dev/categories/generate.md)

## About this tool

Generate UUID v4 with crypto.randomUUID and UUID v7 (Unix-ms time-ordered) in bulk from 1 to 100, or switch to Validate to check and reformat pasted IDs. Both generated versions set the IETF variant bits so libraries accept them as RFC 4122-style IDs.

How to use: pick Generate, choose v4 or v7, set the count, copy. v7 keeps IDs roughly sortable by creation time. Validate accepts one UUID per line, including compact 32-hex forms, and reports version and variant.

Example: a list of 10 v4 IDs seeds a fixture file. A compact 32-character hex string is rewritten with hyphens. We do not allocate identifiers on a server.

IDs are created with the Web Crypto RNG in your browser. Related: random string for custom tokens, password generator for human-typed secrets. Nothing is allocated or stored on a ToolBuddy server.

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