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CompressNConvert

Identifier Generator

Generate and validate RFC 9562 UUIDs, or create compact Nano ID and sortable ULID values.

Runs locally in your browser

UUID v4 · Random

Random identifiers suited to most general-purpose application data.

Generated V4 UUIDs

Configure the selected type and generate a new result

No UUID generated for the selected type yet.

Nano ID and ULID

Generate compact URL-friendly IDs or lexicographically sortable identifiers.

  1. Generate identifiers to see results.

Validate UUID

Valid UUID version 7

Normalized: 01890f3a-5bd8-7cc2-98c8-4f4a934f5abc

Complete tool guide

Identifier Generator guide

This workbench supports RFC 9562 UUID versions, UUID validation, sortable ULIDs, and compact URL-friendly Nano IDs.

Your input is processed in the current browser tab and is not sent to the application server.

Why use this tool?

  • Inspect or transform developer data without installing another utility.
  • Copy a clean result directly into code, a terminal, an API client, or documentation.
  • Keep routine developer work in one fast, consistent interface.

Common use cases

  • Creating fixture IDs for local development
  • Preparing sortable identifiers for database records
  • Generating deterministic identifiers from DNS names or URLs
  • Validating UUID input before an import

How to use it

  1. 1

    Choose the UUID type that matches the consuming system.

  2. 2

    Set a quantity or provide the name and namespace required by deterministic types.

  3. 3

    Choose display casing and hyphen formatting.

  4. 4

    Generate, copy, or download the result.

Random and time-based

Version 4 uses random bits. Versions 1 and 6 use Gregorian time fields, while version 7 uses a Unix millisecond timestamp and random data.

Name-based

Versions 3 and 5 generate a repeatable UUID from a namespace and name. Version 5 is preferred for new deterministic workflows.

Uniqueness

UUIDs make accidental collisions unlikely, but they do not replace a database uniqueness constraint.

Practical tips for better results

  • Use v4 for general-purpose opaque identifiers.
  • Use v7 when roughly time-sortable database keys are useful.
  • Use v5 rather than v3 unless compatibility requires MD5.
  • Do not use UUIDs as passwords or authorization secrets.

Frequently asked questions

Does the Identifier Generator upload my data?

No. The transformation runs locally in your browser. Avoid pasting secrets into any tool you do not control, and clear the fields when using a shared device.

Can I use the result in production?

You can copy or download the result, but review it in the context of your application and run the project-specific tests or validation required by your workflow.

Keep working

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