Generating unique identifiers manually is error-prone and time-consuming. Our UUID generator creates cryptographically secure, globally unique identifiers instantly, ensuring your databases, APIs, and distributed systems maintain data integrity without collisions or conflicts.
🎲 True randomness - Cryptographically secure UUID v4 generation
⚡ Instant bulk generation - Create 1 to 1000 UUIDs in milliseconds
📋 Multiple formats - Uppercase, lowercase, with or without hyphens
🔄 Version support - Generate v1 (timestamp), v4 (random), or v7 (sortable)
💾 One-click copy - Copy individual UUIDs or entire batches
🎯 Zero collision risk - 5.3 × 10³⁶ possible combinations
Choose the Right Version
Use UUID v4 for most applications (random, secure). Use v1 for timestamp-based tracking. Use v7 for database-friendly sortable IDs. v4 is the most common and recommended for general use.
Database Primary Keys
UUIDs make excellent primary keys for distributed databases and microservices. They allow offline ID generation, prevent auto-increment conflicts, and support multi-master replication seamlessly.
API Request IDs
Use UUIDs for request tracking and correlation in distributed systems. They enable end-to-end request tracing across services, making debugging and monitoring significantly easier.
Bulk Generation for Testing
Generate batches of UUIDs for test data, database seeding, or mock APIs. Store them in a text file for reuse across development and testing environments.
Avoid Sequential IDs in Public APIs
UUIDs prevent information disclosure about your system size and growth. Sequential IDs (1, 2, 3) reveal customer counts and order volumes, while UUIDs maintain privacy.
Hash Generator
Generate cryptographic hashes using various algorithms.
Data Format Converter
Convert between JSON, YAML, and XML formats with real-time validation.
JSON to Code Converter
Convert JSON objects into TypeScript interfaces, Zod schemas, or Python dataclasses.
Image to Base64
Convert images to Base64 data URIs for embedding in HTML, CSS, or code.