Developer Tool
UUID Generator
Generate unique UUIDs (v4 and v7). Right in your browser.
Generate UUID
Validate UUID
Bulk Generator
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit identification number that is unique across time and space. UUIDs are used for databases, APIs, and distributed systems.
UUID v4 vs v7
UUID v4 is fully random and most commonly used. UUID v7 is timestamp-based per RFC 9562, making them sortable and better performing in databases with indexes.
Privacy-friendly
All UUIDs are generated client-side in your browser. No data is sent to a server. Your generated UUIDs remain completely private.