Free UUID Generator

What is a Version 4 UUID?

A UUID (Universally Unique Identifier), also known as a GUID (Globally Unique Identifier), is a 128-bit label used for information in computer systems. Version 4 UUIDs are randomly generated.

• Cryptographically Secure: Our tool uses the browser's native crypto.randomUUID() API, ensuring that every generated ID is 100% collision-free and mathematically secure.
• Bulk Generation: Need IDs for a database seed? Generate up to 500 UUIDs at a single click.
• Custom Formatting: Easily strip out hyphens, convert to uppercase, or wrap them in braces depending on your programming language requirements (C#, SQL, Node.js).
• Privacy First: This generator works completely offline in your browser. No data is sent to or stored on our servers.