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Data & Security • UUID & Device ID Generator

UUID, GUID & Random Hex Token Generator – Android ID

Generates cryptographically strong RFC 4122 v4 UUIDs, GUIDs, 64-bit Android Device IDs, and 256-bit encryption tokens.

100% Client-Side Privacy Universal Hardware Compatibility Zero Server Data Upload Instant Execution • No Install
100% Client-SideExecution Mode
HTML5 • WebAPICore Engine
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Free • No InstallAccess Tier

UUID, GUID & Random Hex Token Generator

Data & Security

Generates cryptographically strong RFC 4122 v4 UUIDs, GUIDs, 64-bit Android Device IDs, and 256-bit encryption tokens.

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Android ID Context: Settings.Secure.ANDROID_ID is a 64-bit hex string generated upon initial device setup. When factory resetting or cloning device identifiers in testing labs, randomized 16-hex strings are required.

Frequently Asked Questions

What is UUID Version 4 and how is it generated?

UUID v4 is a 128-bit universally unique identifier generated using cryptographically secure pseudorandom numbers (crypto.getRandomValues). The probability of generating duplicate UUIDs is mathematically negligible.

What is an Android ID (SSAID)?

Android ID is a 64-bit (16-hexadecimal character) unique integer randomly generated when the device is first set up. It remains constant across reboots but changes upon factory resetting the device.

Are these tokens generated locally on my device?

Yes. All random bytes are sourced from your local browser's Web Cryptography engine. No generated keys, UUIDs, or GUIDs are ever sent across a network.

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