NoUploadToolsNoUploadTools
Top horizontal ad space

UUID Generator

Generate random UUID v4 identifiers using the Web Crypto API. All processing happens locally in your browser.

Top ad space
Quick generate:

UUID v4 Format

xxxxxxxx-xxxx-4xxx-[8-b]xxx-xxxxxxxxxxxx

The 4 indicates version 4 (random). The [8-b] indicates the variant (RFC 4122).

🔒 Privacy First: UUIDs are generated using the Web Crypto API in your browser. Nothing is sent to any server.

Bottom ad space

How to Use

  1. Set the number of UUIDs you need (1-100)
  2. Choose your format preferences (case, hyphens)
  3. Click Generate to create new UUIDs
  4. Copy individual UUIDs or all at once
  5. Download as a text file for bulk UUIDs

About UUIDs

UUIDs (Universally Unique Identifiers) are 128-bit identifiers designed to be unique without coordination. UUID v4 uses random numbers, providing 2^122 possible values - enough that collisions are astronomically unlikely.

UUIDs are commonly used as database primary keys, session identifiers, transaction IDs, and anywhere you need unique identifiers that don't reveal information about order or timing. The random nature of v4 UUIDs also makes them suitable for security-sensitive applications.