Are these IDs truly unique?

Statistically, yes. For example, the probability of a collision in UUID v4 is so astronomically low that it is effectively impossible for most applications.

NanoID is a tiny, secure, URL-friendly, unique string ID generator. It is similar to UUID but can be shorter and uses a larger alphabet.

ID Generator

Generate cryptographically strong UUIDs and ULIDs.

ID Type

UUID v4Standard 128-bit random identifier

ULIDLexicographically sortable identifier

Quantity (Max 100)

Uppercase

No Hyphens (Hex)

Generated Output (0)

Ready to generate IDs

Generate unique identifiers (UUID v4, NanoID, ULID, CUID) instantly. Perfect for developers needing random keys for databases or testing.

How to Use This ID Generator

1Select the ID type (UUID, NanoID, ULID, etc.)
2Choose the quantity (how many IDs to generate)
3Click 'Generate'
4Click 'Copy' to grab the list
5Use 'Download' to save as a file

Features

✓Support for UUID v4 (Standard)
✓NanoID (URL-friendly, compact)
✓ULID (Sortable, timestamp-based)
✓CUID / CUID2 (Collision-resistant)
✓Bulk generation support
✓One-click copy to clipboard

Why use UUIDs?

A Universally Unique Identifier (UUID) ensures that a generated key is unique across space and time, minimizing the risk of duplication in distributed systems and databases without needing a central coordination authority.

Frequently Asked Questions

Related Tools

Hash Generator

Create hashes

Password Analyzer

Check strength

Base64 Studio

Encode data