the IT Hustle
ToolsField ManualAbout

UUID Generator — Free Online Tool

Generate universally unique identifiers (UUID v4) instantly. Customize format, generate in bulk, and copy with one click. No signup required.

84ae189a-6ba9-41c7-8d93-9880ac1c10ef

UUID v4 — cryptographically random. Click any UUID to copy.

How to Generate UUIDs

Create UUID v4 identifiers in bulk with The IT Hustle's free UUID Generator.

  1. 1
    Choose how many UUIDs you needSet the count field to any number from 1 to 100 to generate identifiers in bulk.
  2. 2
    Pick your format optionsCheck Uppercase to get capital letters, or Remove Dashes for a compact 32-character format without hyphens.
  3. 3
    Generate the UUIDsClick Generate to create fresh UUID v4 identifiers using your browser's random number generator.
  4. 4
    Copy what you needClick any individual UUID to copy just that one, or use Copy All to grab the entire batch at once.

Frequently Asked Questions

A UUID (Universally Unique Identifier) v4 is a 128-bit identifier generated from random numbers, formatted as 32 hexadecimal digits like 550e8400-e29b-41d4-a716-446655440000. Version 4 means the value is random rather than derived from a timestamp or MAC address.

Statistically, yes. A version 4 UUID has 122 random bits, so the chance of generating two identical UUIDs is astronomically small — you could generate a billion UUIDs per second for decades without a meaningful collision risk.

Some databases, APIs, and legacy systems expect UUIDs without hyphens or in uppercase. The format options let you match whatever convention your system requires without post-processing.

No. UUIDs are generated entirely in your browser, so they are never transmitted or logged anywhere. They're safe to use as database keys, API tokens' identifiers, or test data.

Up to 100 per batch. If you need more, just click Generate again — there's no total limit and no account required.

Related Tools

Password GeneratorHash GeneratorLorem Ipsum Generator