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Identifier tools

UUID Generator

Generate UUID v4 or v7 identifiers locally, one at a time or in a batch.

Runs locally
Settings

Version

  • v4: a random identifier with no embedded creation time.
  • v7: includes creation time and random data; useful when approximate time ordering matters.
  • UUIDs (Universally Unique Identifiers) are identifiers, not passwords. v7 exposes its creation time and does not guarantee global ordering.

UUID v7 includes its creation time. UUIDs are identifiers, not passwords.

Choose Generate after changing settings.

Up to 1,000 UUIDs per generation. Nothing is saved. Output: up to 2 MB.

Guide

Generate a UUID (universally unique identifier) for use as an identifier in software or data. Choose version 4 for a random identifier or version 7 for one that includes creation time, then choose how many you need.

  1. Choose your settings

    Choose v4 for random identifiers or v7 for identifiers containing creation time. Set Results or use Batch of 10.

  2. Generate a result

    Choose Generate. Changing settings clears the old result; choose Generate again for a new one.

  3. Keep the result

    Use Copy output or Download above the fields. On mobile, choose Output. Clear removes the result from this page.

On mobile, choose Output to read the result. Clear removes your data and keeps your settings.

Version

  • v4: a random identifier with no embedded creation time.
  • v7: includes creation time and random data; useful when approximate time ordering matters.
  • UUIDs (Universally Unique Identifiers) are identifiers, not passwords. v7 exposes its creation time and does not guarantee global ordering.

Results

  • Results: generate 1–1,000 identifiers. Choose Generate after changing settings.
Shortcuts
  • Ctrl / Cmd + Enter — Run selected action
  • Ctrl / Cmd + Shift + C — Copy output
  • Ctrl / Cmd + S — Download output
  • ? — Show shortcuts outside text fields

Shortcuts work while focus is in the workspace. Copy and download need valid output.

Common questions
Is anything uploaded or saved?
No. Processing stays in a browser worker. Inputs, filenames and generated results are not stored, uploaded or added to shared links. Copy and Download act only when you choose them.
What is different about v7?
Both versions use random data. Version 7 also contains creation time. UUIDs are identifiers, not authentication secrets, and v7 is not a promise of global ordering.
What are the limits?
1–1,000 UUIDs per generation. Output is limited to 2 MB; processing stops after five seconds.

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