🔍 UUID Parser & Version Detector
Professional UUID analysis tool that parses existing UUIDs to detect version types, validate RFC 4122/9562 compliance, visualize byte layout, extract timestamps from v1 UUIDs, and provide comprehensive technical analysis for developers and system architects.
UUID Analysis Results:
550e8400-e29b-41d4-a716-446655440000
Version 4 (Random) • RFC 4122 Compliant
🆔 Version Detection
🔢 Byte Structure Analysis
■ Variant+Clock Seq (16-bit) ■ Node (48-bit MAC)
⚙️ Technical Details
✅ Validation Results
• Format: Standard UUID with hyphens (36 characters)
• RFC Compliance: RFC 4122 compliant Version 4 UUID
• Security: Cryptographically secure random generation
• Use Case: Ideal for database keys, API identifiers, session tokens
How to Use This UUID Parser & Version Detector
How to Analyze UUIDs:
- Paste your UUID(s) in the input field (supports multiple formats)
- Choose input format handling (auto-detect recommended)
- Select analysis detail level based on your needs
- Enable byte structure visualization for technical details
- Enable RFC compliance validation for standards verification
- View comprehensive analysis including version detection
- Copy results or download analysis report
Pro Tips: Use developer mode for complete technical analysis including timestamp extraction from v1 UUIDs. The tool handles multiple UUID formats automatically and provides security recommendations for each version type!
How It Works
Advanced UUID Analysis Technology:
Our UUID parser uses sophisticated algorithms to analyze and validate UUID structures:
- Format Detection: Automatically identifies standard, compact, braced, and custom UUID formats
- Version Identification: Analyzes version bits to detect v1 (timestamp), v3 (MD5), v4 (random), v5 (SHA1)
- Bit Pattern Analysis: Examines variant bits, version bits, and field structures for compliance
- Byte Structure Visualization: Color-coded breakdown of time fields, clock sequence, and node components
- RFC Compliance Checking: Validates against RFC 4122 and RFC 9562 standards with detailed reporting
Version-Specific Analysis: Our engine provides specialized analysis for each UUID version:
- v1: Timestamp extraction, MAC address analysis, clock sequence validation
- v3/v5: Hash validation, namespace verification, deterministic generation checking
- v4: Randomness assessment, entropy analysis, security evaluation
- Advanced: Support for newer v6, v7, v8 formats from RFC 9562
When You Might Need This
- • API Security Auditing - Security teams analyze API request UUIDs to verify proper randomness, detect predictable patterns, and ensure secure identifier generation across microservices and distributed systems.
- • Database Schema Validation - Database administrators parse UUIDs from primary keys and foreign keys to verify version consistency, validate RFC compliance, and identify potential collision risks in large-scale data systems.
- • System Integration Debugging - DevOps engineers analyze UUIDs in log files, message queues, and transaction records to trace data flow, identify system boundaries, and debug integration issues between services.
- • Forensic Data Analysis - Digital forensics specialists examine UUID timestamps in v1 identifiers to establish timelines, track system activities, and correlate events across multiple systems and log sources.
- • Legacy System Migration - Migration specialists parse existing UUID formats to understand version types, validate data integrity, and plan conversion strategies when moving between different database and application platforms.
- • Compliance Assessment Tools - Compliance officers validate UUID generation practices against security standards, ensuring proper entropy levels and RFC compliance for regulatory requirements in financial and healthcare systems.
- • Performance Optimization Analysis - Performance engineers analyze UUID distribution patterns to identify clustering issues, evaluate index performance impact, and optimize database query patterns for UUID-based primary keys.
- • Third-Party Integration Validation - Integration developers verify UUID formats from external APIs, validate partner system compliance, and ensure compatibility between different UUID generation implementations across organizational boundaries.
- • Security Token Verification - Authentication systems parse session tokens and API keys formatted as UUIDs to validate security properties, check expiration timestamps, and verify proper cryptographic randomness.
- • Data Quality Monitoring - Data engineers implement automated UUID validation in ETL pipelines to detect malformed identifiers, ensure data consistency, and maintain referential integrity across distributed data processing workflows.
Frequently Asked Questions
What's the difference between UUID versions and how can I identify them?
UUID versions are identified by the version bits in the 13th character. Version 1 uses timestamps and MAC addresses (identifiable by time-based patterns), Version 3 uses MD5 hashing (deterministic from input), Version 4 uses random generation (most common, fully random), and Version 5 uses SHA1 hashing. Our parser automatically detects the version and explains the generation method used.
How does the byte structure visualization help me understand my UUIDs?
The byte structure breaks down the 128-bit UUID into its component fields: time_low (32 bits), time_mid (16 bits), time_hi_and_version (16 bits), clock_seq_hi_and_reserved + clock_seq_low (16 bits), and node (48 bits). Color coding helps visualize how different UUID versions use these fields - v1 stores timestamps, v4 fills with random data, while v3/v5 contain hash values.
What does RFC 4122/9562 compliance checking validate?
RFC compliance checking verifies that your UUID follows official standards: proper format structure (36 characters with hyphens), correct version bits in position 13, valid variant bits (indicating RFC 4122 vs other standards), appropriate field values for the detected version, and overall structural integrity. RFC 9562 (2024) introduced additional versions and clarifications.
Can I analyze multiple UUIDs at once and compare their properties?
Yes! Paste multiple UUIDs (one per line) and the tool will analyze each one individually, showing version detection, format validation, and technical details for all UUIDs. This is useful for verifying consistency across systems, detecting mixed version usage, or comparing generation patterns from different sources.
What security insights can I get from UUID analysis?
Our analysis reveals security-relevant information: v1 UUIDs expose MAC addresses and timestamps (privacy concerns), v4 UUIDs show randomness quality (entropy assessment), v3/v5 UUIDs indicate deterministic generation (predictability), and format analysis can reveal implementation details. We provide security recommendations based on your UUID's characteristics and intended use case.