UUID Generator
Generate cryptographically random UUID v4 identifiers — one at a time or thousands in a single click.
UUID v4 Generator
Generate cryptographically random RFC 4122 v4 UUIDs in bulk.
UUIDs are generated locally using crypto.randomUUID.
10 UUIDs generated
How to use UUID Generator
- 1
Choose how many
Generate a single UUID or up to 10,000 at once.
- 2
Pick a format
Default lowercase with dashes, or toggle uppercase, no-dashes, and curly braces for SQL Server / Windows GUIDs.
- 3
Copy or download
Copy individual UUIDs, copy all at once, or download as a plain .txt file.
About UUID Generator
Generate cryptographically random UUID v4 identifiers — one at a time or thousands in a single click.
Use UUID Generator when you need to generate v4 uuids in bulk. Review the available options in the interface, process your input, and check the result before saving or copying it.
Frequently asked questions
Cryptographically random RFC 4122 version 4 UUIDs, using the browser's crypto.randomUUID where available and crypto.getRandomValues as a fallback.
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