UUID v5 Generator (SHA-1 Namespace)

Generate deterministic RFC 9562 Version 5 UUIDs using SHA-1 hashing of a namespace UUID and name string.

How It Works & Processing Standards

Generate deterministic RFC 9562 Version 5 UUIDs using SHA-1 hashing of a namespace UUID and name string.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 100,000 characters

UUID v5 Generator (SHA-1 Namespace) is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use UUID v5 Generator (SHA-1 Namespace)

  1. 1
    Enter Name & NamespaceInput your name string and valid namespace UUID.
  2. 2
    Copy UUID v5Obtain the deterministic SHA-1 based UUID.

Common Use Cases

  • Building consistent foreign keys derived from external domain names, URLs, or external system IDs
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