Developer Tools
~/uuid-generator
// Generate UUID v4 instantly in your browser. Bulk, copy all, no signup.
UUID v4
Randomly generated universally unique identifier - 128-bit value with ~5.3 x 10^36 possible values.
Bulk Generate
Generate up to 100 UUIDs at once. Copy all with one click for batch use.
Browser-only
Uses native crypto.randomUUID() - cryptographically secure, no server calls.
// FAQ
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit label used to uniquely identify information in computer systems. Format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.
Is UUID v4 truly unique?
UUID v4 is randomly generated. The probability of a duplicate is astronomically low - around 1 in 5.3 x 10^36. Safe to use as unique IDs in any system.
Is this cryptographically secure?
Yes. This tool uses the browser native crypto.randomUUID() which is backed by a cryptographically secure random number generator.