ID Generator

About ID Generator

This UUID generator creates unique identifiers in whatever format you need — UUID v4 and v7, ULID, NanoID, and CUID2. Generate one or many at once and copy them individually or all together. Every ID uses cryptographically strong randomness and is generated locally, never sent anywhere.

Frequently asked questions

How do I generate a UUID v4 or v7?

Pick the UUID v4 or v7 button and hit Generate. v4 is fully random and the ubiquitous default; v7 embeds a timestamp so the IDs sort by creation time, which is friendlier for database indexes. You can also uppercase the hex output.

Can I generate a NanoID, ULID, or CUID2 instead?

Yes — switch the format button. NanoID gives a compact 21-char URL-safe ID, ULID gives a sortable 26-char Crockford base32 ID, and CUID2 gives a short collision-resistant ID from the official cuid2 package.

Can I generate UUIDs in bulk?

Yes. Set the quantity (up to 100) and generate the whole batch at once, then copy them individually or use 'Copy all' to grab the full list in one click.

Are the IDs generated securely?

Yes. They use cryptographically secure randomness, not a predictable generator, and are created entirely in your browser — nothing is transmitted or stored.