Online GUID Regex Validator & Generator Tool

What is a GUID?

A GUID (Globally Unique Identifier) is a 128-bit value used to uniquely identify objects, entities, or resources in computer systems. Also known as UUID (Universally Unique Identifier), GUIDs are designed to be unique across all devices and time.

Standard Format

The most common format with hyphens:

xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

Example: 550e8400-e29b-41d4-a716-446655440000

Braced Format

Standard format enclosed in braces:

{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}

Example: {550e8400-e29b-41d4-a716-446655440000}

No Hyphens

32 consecutive hexadecimal characters:

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Example: 550e8400e29b41d4a716446655440000

Parentheses Format

Standard format with parentheses:

(xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)

Example: (550e8400-e29b-41d4-a716-446655440000)

GUID Validator

GUID Generator

GUID Regex Patterns

JavaScript Regex Patterns for GUID Validation:

Complete GUID Validator (All Formats):
/^(\{)?[0-9a-fA-F]{8}-?[0-9a-fA-F]{4}-?[0-9a-fA-F]{4}-?[0-9a-fA-F]{4}-?[0-9a-fA-F]{12}(\})?$/
Standard Format Only:
/^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$/
Braced Format Only:
/^\{[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}\}$/

Validation Statistics

0
Total Validations
0
Valid GUIDs
0
Invalid GUIDs
0
Generated GUIDs


Feature Details
Price Free
Rendering Client-Side Rendering
Language JavaScript
Paywall No

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About This Tool

Key Features:

🔍 Advanced Validation:

  • Multiple GUID format support (with/without hyphens, braces, parentheses)
  • Real-time validation as you type
  • Detailed validation results with highlighting
  • Format detection and identification

⚡ Advanced Features:

  • GUID Generator: Create new GUIDs instantly
  • Batch Validation: Test multiple GUIDs at once
  • Format Converter: Convert between different GUID formats
  • Validation History: Track your validation results
  • Copy to Clipboard: Easy copying of GUIDs and results

📚 Comprehensive Guide:

  • What is a GUID explanation
  • Supported formats with examples
  • Regex patterns used for validation
  • Step-by-step usage instructions
  • Validation result explanations

🎯 How It Works:

  1. Input your GUID in the main text area
  2. See real-time validation with color-coded results
  3. View detailed analysis of your GUID format
  4. Generate new GUIDs using the generator
  5. Convert between formats with the converter tool
  6. Review validation history to track your work

The tool provides immediate feedback on GUID validity, shows which regex pattern matched, highlights the result, and explains how the validation was calculated - exactly as you requested!

How It Works?

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