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Documentationuuid generator

Tool reference

UUID Generator

beta

Generate RFC-compliant UUID v1, UUID v4, and UUID v7 tokens in bulk with customizable casing and formatting options.

Open toolBack to docs

Quickstart

Use this when you want the shortest path from input to a useful result.

1

Select the UUID version (v1, v4, or v7).

2

Adjust the quantity slider (up to 100).

3

Click Generate New Batch or toggle casings/hyphens.

Best for

Common situations where this tool fits naturally into the workflow.

  • Generate random UUID v4 keys for database primary identifiers.
  • Generate ordered UUID v7 keys that preserve sorting by creation time.
  • Create bulk dummy IDs for mock databases or testing workflows.

Common tasks

Concrete ways this tool is typically used in day-to-day workflows.

Generate UUID v7 for databases

Select v7, which combines a timestamp with random bits. This ensures IDs sort naturally chronologically, improving index efficiency.

Generate lowercase UUIDs in bulk

Set the quantity to 50, ensure 'lowercase' is selected, and download the resulting list as a text file.

Strip hyphens from UUIDs

Toggle the 'Include Hyphens' switch to produce clean 32-character hexadecimal strings.

Examples

Real inputs and outputs that show how the tool behaves.

UUID v4 sample

Standard random UUID v4 string.

Configuration

Version: v4, Casing: Lower, Hyphens: True

UUID output

6b9c9f13-64a6-4444-a038-f1f3e7fb7da5

Features

What this tool includes and what each capability is for.

Multiple versions

Supports standard v1, v4, and modern v7 specifications.

Custom casing

Choose uppercase or lowercase formatting.

Bulk generation

Generate up to 100 UUIDs per click.

Easy copying

Copy individual items or the entire list instantly.

Workflow

Follow this path to get from input to output quickly.

1

Choose UUID version from the header menu.

2

Adjust quantity slider, casing choice, and hyphen toggle.

3

Copy individual tokens or download the entire list.

Caveats and tips

Things to keep in mind before relying on the output in a larger workflow.

Caveats

  • UUID v1 contains time-based sequence fields and a random mock MAC address, which may contain repeatable patterns.
  • UUID v7 uses millisecond-level timestamps, meaning IDs generated in the same millisecond are ordered randomly.

Tips

  • UUID v7 is highly recommended for relational database primary keys to prevent index fragmentation.
  • Download output directly as a text file for import into seed scripts.

On this page

QuickstartBest forCommon tasksExamplesFeaturesWorkflowCaveats and tips

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