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Online UUID Generator

Generate UUIDs instantly with our powerful online tool. Perfect for developers needing unique identifiers. Choose from multiple UUID versions for your specific use case.

Bulk UUID Generation

Enter the number of UUIDs to generate and download them as a text file. Ideal for batch processing and data management tasks.

Explore UUID Versions

About UUIDs

What are UUIDs?

Universally Unique Identifiers (UUIDs) are 128-bit identifiers that provide a standardized way to generate unique IDs. They are widely used in software development for creating distinct identifiers without centralized coordination.

Available UUID Versions

Version 1Time-based UUIDs using computer clock
Version 3Name-based UUIDs using MD5 hashing
Version 4Random UUIDs for general use
Version 5Name-based UUIDs using SHA-1
Version 7Time-ordered UUIDs for modern systems

Common Use Cases

  • Database Keys:Generate unique primary keys for database records
  • Distributed Systems:Create unique identifiers across multiple systems
  • Session Management:Track user sessions and application states
  • File Names:Generate unique names for uploaded files

Frequently Asked Questions

What is JSON Reader and how does it help developers?

JSON Reader is a comprehensive JSON toolkit that helps developers format, validate, and transform JSON data. It provides real-time formatting, validation, and conversion tools to make working with JSON more efficient and error-free.
JSON
Developer Tools
API

How do I use the JSON Diff Checker?

Simply paste your JSON data into the provided fields and click "Compare" to see the differences. Our tool highlights changes, additions, and deletions in a clear, easy-to-read format.
Diff
Comparison
API

Is JSON Reader free to use?

Yes, JSON Reader is completely free to use for all users. All our tools are available online without any registration or installation required.
Free
Open Source

What makes JSON Reader different from other JSON tools?

JSON Reader stands out with its comprehensive suite of tools, real-time validation, beautiful interface, and powerful features like JSON to table conversion, diff comparison, and multiple format conversions.
Features
Performance

How secure is my data when using JSON Reader?

Your data security is our top priority. All processing is done locally in your browser - we never store or transmit your JSON data to any servers.
Security
Privacy

Can I use JSON Reader for large JSON files?

Yes, JSON Reader can handle large JSON files efficiently. Our tools are optimized for performance and can process complex JSON structures without compromising on speed or accuracy.
Performance
Large Files