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UUID Generator

Generate unique UUIDs (v4) for records, transactions, and API requests in workflows

Click "Generate New" to create UUIDs

How to use in n8n

In Set Node

Use the generated UUID as a value for record IDs or transaction identifiers:

Field: id
Value: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx

With Expression

You can also generate UUIDs dynamically in n8n using the Code node with crypto.randomUUID()

What is a UUID and Why Use It?

A UUID (Universally Unique Identifier) is a 128-bit identifier that is guaranteed to be unique across all devices and time. This free UUID generator creates version 4 UUIDs using cryptographically secure random numbers.

UUID v4 Format

UUID v4 follows the format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx where x is any hex digit and y is 8, 9, A, or B.

Common Uses for UUIDs

  • Database Records - Primary keys that don't reveal record count
  • API Request IDs - Track requests across distributed systems
  • Session Tokens - Unique identifiers for user sessions
  • File Names - Prevent filename collisions in uploads
  • Transaction IDs - Track operations in workflow automation

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