ULID Generator

Generate Universally Unique Lexicographically Sortable Identifiers (ULIDs) in bulk securely in your browser.

Frequently Asked Questions

What is a ULID?
A ULID (Universally Unique Lexicographically Sortable Identifier) is a 26-character unique identifier that is compatible with UUIDs but is sortable chronologically, making it excellent for database keys.
How is a ULID structured?
It consists of a 10-character timestamp (48 bits) followed by a 16-character cryptographically secure random value (80 bits), encoded in Crockford's Base32.
Is it secure?
Yes, it uses the browser's cryptographically secure random number generator (`crypto.getRandomValues`) to populate the randomness portion.