UUID Generator

Generate 1 to 100 random version 4 UUIDs (GUIDs) at once and copy them one by one or all together.

How many?

How to use UUID Generator

Set how many UUIDs you want, from 1 to 100.
Click Generate.
Copy individual UUIDs, or use "Copy All" for the full batch.

→ hash a UUID or any other string

Reference: RFC 4122, the UUID specification

Frequently asked questions

What's the difference between v1 and v4 UUIDs?

v4 UUIDs are fully random and the standard choice for most uses. v1 UUIDs are derived from a timestamp, which can leak when they were created — most modern systems default to v4 unless they specifically need time-ordering.

Can two generated UUIDs ever collide?

In practice, no. A v4 UUID has 122 random bits, making the odds of a collision low enough to be considered effectively zero for any real-world use.

Can I generate a lot of UUIDs at once?

Yes — use the bulk option to generate a batch and copy them all together.

Community

Related tools

JSON Formatter

Format, validate, and beautify JSON with syntax highlighting.

Base64 Encoder / Decoder

Encode and decode Base64 strings instantly.

URL Encoder / Decoder

Encode or decode URL/percent-encoded strings.

HTML Encoder / Decoder

Convert special characters to HTML entities and back.