Is UUID Generator free to use?

Yes, this tool is completely free with no limitations. No registration or payment required.

Absolutely. All processing happens in your browser. Your data never leaves your device and is not uploaded to any server.

UUID/GUID Generator

Generate universally unique identifiers instantly. Click the UUID to copy.

Bulk Generate

Count

Format Options

Uppercase No dashes With braces {}

Frequently Asked Questions

UUID (Universally Unique Identifier) is a 128-bit number used to identify information in computer systems. Also known as GUID (Globally Unique Identifier). The probability of generating duplicate UUIDs is practically zero.

v1 uses timestamp + MAC address (sortable by time). v4 is completely random (most common). v7 is newer, combining timestamp with random data, making it sortable while maintaining randomness - ideal for database primary keys.

Yes! All UUID generation happens directly in your browser using cryptographically secure random number generation. Nothing is sent to any server.