UUID Generator

What is a UUID Generator?

A UUID (Universally Unique Identifier) generator is an essential developer tool that creates unique identifiers that are virtually guaranteed to be unique across space and time. UUIDs are 128-bit identifiers represented as 32 hexadecimal digits, typically displayed in groups separated by hyphens (e.g., 550e8400-e29b-41d4-a716-446655440000). Our free UUID generator supports both UUID v4 (random) and v1 (timestamp-based) versions, multiple output formats, batch generation, and validation. All UUID generation happens 100% client-side in your browser using cryptographically secure random number generation, ensuring your identifiers never leave your device and remain completely private.

Benefits & Features

Support for UUID v4 (random) and v1 (timestamp-based) versionsMultiple output formats: standard, no hyphens, uppercase, lowercaseBatch generation: create 1-100 UUIDs at onceUUID validation to verify if a string is a valid UUIDExport options: JSON, CSV, and TXT formatsRFC 4122 compliant UUIDs for cross-platform compatibilityCryptographically secure random number generation100% client-side processing - UUIDs never leave your browserNo registration or installation required - use instantly

How to Use the UUID Generator

1. 1

   Select UUID version

   Choose UUID v4 (random) for most use cases, or UUID v1 (timestamp-based) if you need sortable identifiers.

2. 2

   Choose format

   Select the output format: standard (with hyphens), no hyphens, uppercase, or lowercase based on your project requirements.

3. 3

   Set quantity

   Enter the number of UUIDs you want to generate (1-100) using the count selector.

4. 4

   Generate UUIDs

   Click the "Generate UUIDs" button to create your unique identifiers. UUIDs will appear instantly in the output area.

5. 5

   Copy or export

   Copy individual UUIDs to clipboard, copy all at once, or export them as JSON, CSV, or TXT files for use in your projects.

6. 6

   Validate UUIDs

   Use the built-in validator to check if any UUID string is valid and RFC 4122 compliant.