UUID Generator
Generate secure UUIDs (v4) instantly.
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About UUID Generator
Generate cryptographically secure Universally Unique Identifiers (UUIDs) instantly. Our tool supports both Version 4 (random) and other standard formats, providing high-entropy strings for databases, APIs, and software development.
How to Use
- Select the 'UUID Version' required (Version 4 is most common for random IDs).
- Click 'Generate UUID' to create a new unique identifier.
- The new UUID will appear instantly in the result field.
- Copy the string and paste it into your code, database, or configuration file.
Common Use Cases
- Creating primary keys for database tables to avoid ID collisions.
- Generating unique session tokens or tracking IDs for web applications.
- Creating unique filenames for cloud storage uploads and data migrations.
Technical Details
Uses the browser's crypto.getRandomValues API to ensure high entropy and compliance with RFC 4122 specification. All generation is on-device.
Frequently Asked Questions
- What is a UUID?
- A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems.
- Can I get a duplicate?
- The probability of generating a duplicate UUID is so infinitesimally small that it is considered practically impossible for any real-world application.
100% Private & Secure
This tool runs entirely in your browser using client-side technology. Your files and data are never sent to a server, ensuring 100% privacy and speed.