Advanced UUID Generator
Generate Universally Unique Identifiers (UUIDs) instantly. Create UUID version 4 (random), version 1 (timestamp), or custom UUIDs.
UUID Version
Options
Generation
Generate up to 100 UUIDs at once
Generated UUID(s)
UUID Generator API
Integrate UUID generation into your applications with our REST API:
Authentication: API Key required (free tier available)
Rate Limit: 1000 requests/hour (free tier)
Generate Single UUID
GET /generate?version=v4&uppercase=true&hyphens=true
Generate a single UUID with specified options.
Parameters: version (v1, v4, nil), uppercase (bool), hyphens (bool)
Generate Multiple UUIDs
GET /generate/batch?count=5&version=v4
Generate multiple UUIDs in a single request.
Parameters: count (int, max 1000), version, uppercase, hyphens
Validate UUID
POST /validate
Validate if a string is a properly formatted UUID.
Parameters: uuid (string), strict (bool)
About This UUID Generator Tool
Our advanced UUID generator tool is an essential utility for software developers, database administrators, and system architects working with distributed systems. A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. Our tool generates RFC 4122 compliant UUIDs instantly in your browser, ensuring complete privacy and security as no data leaves your computer.
This tool supports multiple UUID versions: UUID version 4 (random-based) which uses cryptographically secure random number generation, UUID version 1 (timestamp-based) which incorporates MAC address and timestamp for uniqueness, and the special Nil UUID (all zeros) for testing purposes. Each generated UUID is guaranteed to be unique across space and time with a probability so close to zero it can be considered impossible for practical purposes.
UUIDs are crucial for database record identification, distributed system coordination, API request tracking, session management, and ensuring data integrity across microservices architectures. Unlike sequential IDs, UUIDs can be generated independently by different systems without coordination, making them ideal for horizontally scaled applications and offline-capable systems.
Our generator includes advanced features like bulk UUID generation (up to 100 at once), customizable formatting (with/without hyphens, uppercase/lowercase, braces), and export capabilities. Whether you're developing a SaaS application, implementing a distributed database, or building microservices, this tool will save you time and ensure you're using properly formatted, standards-compliant UUIDs.