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UUID v4 & GUID Generator

UUID v4 & GUID Generator

Generate up to 100 UUID v4 values with crypto.randomUUID(), then apply uppercase, no-hyphen, or NIL formatting.

Focus mode
Generated UUIDs
UUID v4 values are generated with crypto.randomUUID(), entirely in your browser.
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Select Regenerate to create UUIDs.

Settings
Choose the count and output format.
Use uppercase A-F
Omit the hyphen separators
Use an all-zero UUID

Key features

  • Creates 1–100 UUID v4 values at once with crypto.randomUUID().
  • Can uppercase hexadecimal letters or remove hyphen separators.
  • Also outputs the all-zero NIL UUID representation.
  • Copies each UUID or the complete newline-separated list.

How to use

  1. Enter a generation count from 1 to 100.
  2. Select uppercase, no-hyphen, or NIL UUID formatting.
  3. Copy the generated identifiers or regenerate them.

Examples

  • Prepare test record IDs

    Create a batch of UUID v4 values for multiple data rows.

  • Match an identifier format

    Switch to uppercase or hyphen-free output for a target system's convention.

Privacy

UUIDs are generated in your browser, and QuickKit does not store or transmit the results.

Requirements

NIL mode repeats the same all-zero value and must not be used where a unique identifier is required.

Common questions

How many UUIDs can I generate at once?
Generate 1 to 100 UUID v4 values at a time with browser crypto.randomUUID().
Can I output a GUID-style format?
Yes. Uppercase the hexadecimal letters or remove hyphens from the standard UUID string to match a target convention.

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