Back to all tools

UUID Generator Online | Unique Identifier Generator

Generate universally unique identifiers (UUIDs) in multiple versions and formats. Perfect for database keys, API identifiers, and unique resource naming.

uuid generator
unique identifier
guid generator
random uuid
Configuration
Generated UUIDs

No UUIDs generated yet

Click "Generate UUIDs" to create new UUIDs

About UUID Generator

Generate universally unique identifiers (UUIDs) in multiple versions and formats. Perfect for database keys, API identifiers, and unique resource naming in software development.

Key Features

  • Multiple UUID versions support (v1 timestamp-based, v4 random, nil)
  • Bulk generation with configurable quantity (1-100 UUIDs)
  • Multiple output formats (standard, uppercase, no-hyphens, braces)
  • Custom prefix and suffix support for branded identifiers
  • Auto-generation on settings change for rapid prototyping
  • Individual and bulk copy functionality for easy use
  • Download generated UUIDs as text files for batch processing
  • Auto-save functionality for Pro users with cross-device sync

Use Cases

  • Database primary keys and unique identifiers for records
  • API resource identifiers and request tracking tokens
  • File naming and version control for unique file identification
  • Session management and user authentication tokens
  • Microservices communication and distributed system IDs
  • Testing and development with unique test data identifiers

Supported Formats

UUID Version 1 (Timestamp-based)
UUID Version 4 (Random)
Nil UUID (All zeros)
Standard Format (lowercase with hyphens)
Uppercase Format
No-hyphens Format (compact)

Related Keywords

uuid generator
unique identifier
guid generator
uuid v4
uuid v1
random uuid
database id
api identifier
unique id generator
universally unique identifier

UUID Standards

This tool generates UUIDs following RFC 4122 standards. Version 4 UUIDs are cryptographically random and suitable for most applications. Version 1 UUIDs include timestamp information but may reveal system details.

Privacy & Security

All processing happens locally in your browser. Your data never leaves your computer, ensuring complete privacy and security.

Related Tools

Professional color picker tool with multiple format support, palette management, and advanced color manipulation features. Perfect for designers and developers.

color picker
hex color

More Tools You Might Like

Test and validate API keys for OpenAI, Anthropic, Google AI, and other services. Secure validation without storing keys on our servers.
api key
validator
openai
anthropic
google ai
authentication
testing
Free online tool to encode or decode base64 data. Fast, private, and easy to use with no login required. All processing happens in your browser.
base64
encoder
decoder
Professional color picker tool with multiple format support, palette management, and advanced color manipulation features. Perfect for designers and developers.
color picker
hex color
rgb color
color tool
color generator
color codes