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UUID Generator

Generate cryptographically secure v4 and v1 Universally Unique Identifiers (UUIDs).

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Engineering Guides

What is UUID Generator?

Generate single or batch cryptographically random UUID v4 identifiers directly using Web Crypto API. Support for upper/lowercase formatting and bulk generation.

Technical Specifications & System Attributes

AttributeSpecificationStandard / Protocol
Execution RuntimeIn-Browser Client (JavaScript / WebAssembly)W3C HTML5 / ECMAScript 2026
Data Persistence0 bytes (Volatile RAM only, no remote logging)Zero-Knowledge Architecture
Input FormatsPlain TextMIME standard
Browser CompatibilityGoogle Chrome, Mozilla Firefox, Apple Safari, EdgeEvergreen Browsers

Key Features & Capabilities

Uses window.crypto for true randomness
Batch output up to 100 UUIDs
Hyphen and casing controls

How to Use UUID Generator

  1. 1Select the quantity of UUIDs to generate (1 to 100).
  2. 2Choose options (uppercase, hyphens).
  3. 3Click 'Generate UUIDs'.
  4. 4Copy all generated UUIDs.
Data Privacy & Security Guarantee

When you use UUID Generator, all input processing is executed completely inside your Web browser memory via client-side JavaScript. Your text and files are never stored, logged, or sent to backend databases.

Developer Guides & Tutorials

Understanding Unix Epoch Timestamps & Timezones

Demystifying 10-digit epoch seconds vs 13-digit milliseconds, ISO 8601 UTC strings, and leap seconds.

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Base64 Encoder

Encode text strings and binary data into standard Base64 string format.

Frequently Asked Questions

Are generated UUIDs unique?

UUID v4 uses 122 bits of randomness. The probability of generating a duplicate UUID is so small it is virtually impossible.

Engineered and verified by DevKitLab Core Architecture Team.Tested RFC Compliance