What is UUID (v4)?
(Universally Unique Identifier). It is a 128-bit 36-character password that saves lives when an application crashes (Distributed Architecture) while generating 'Primary Key (Auto-Increment 1-2-3)'.
UUID (GUID) Random Generator (v4)
How to Use?
1
Enter the Quantity (Number) of Issues to be Produced
Decide whether you need a single ID or a list of UUIDs (e.g. 50) to use in your test or live environment.
2
Format Version Format
Depending on the type your software reads, click on one of the Standard (With Hyphens - Hyphen), Pure (Without Hyphens/Plain string) or for C# projects (With Curly Brackets - Guid) designs.
3
Copy and Include in the System
As soon as you press the Generate button, the generated IDs are displayed on the screen without any of your information being transmitted to the server (in the Browser Cache). Paste it to the clipboard with a single click.
What is this tool for?
Cryptographic Security (v4 Secret)
Instead of the weak (Math.Random) command in browsers, unbreakable unique (V4 Standards) passwords are created by calling the 'Crypto API' used in banks.
Usage Industries
It is perfect for User Login Tokens (Session), unique file names for images uploaded to the Cloud, or Request tracking in Rest APIs.
Probability of Collision / Same Result?
The power of UUIDv4 is the massive probability limit. If everyone in the world produced 'Trillions of UUIDs per second' and waited for billions of years, there would be no risk of even one collision.
When should you use this?
Saviour of Your Database and Backend Processes: What is UUID?
In the modern computer coding ecosystem (Front-End and Back-End), one of the fatal errors developers encounter most often is the "Conflict (Collision / Key Error)" problem. When 20 million customers add products to their Cart at the same time on an E-Commerce site, you cannot track which order code (ID) belongs to whom with traditional sequential numbers (Number 1, Number 2...). This system cannot resist horizontal growth as well as inviting security risk. That's where UUID (Universally Unique Identifier) 128-Bit Alphanumeric Architecture enters. ToolboxTR Generator tool prints hundreds of identities to your clipboard instantly without being forced to install server dependencies and modules (npm i uuid etc).
UUIDv4 Anatomy: Why Can They Never Be Guessed or Conflict?
"If a computer creates an identity, what if one day another computer in the world just coincidentally produces the same one for this tool? Won't the two processes get mixed up?". The answer to this justified fear is Mathematics. UUID Version-4 (Random Generation) is like the god of luck. There are exactly (2 to the power of 122) possibilities within a UUID. This number is billions of times the number of stars in the observable universe. Therefore, the probability of your systems producing the same identity by chance is weaker than the "Meteor strike" probability; it is impossible.
Our Privacy Policy is in Question: Client-Side (Browser Layer) Production
When you enter this free UUID generator page, productions are in no way made to ToolboxTr servers as "Send-Receive (Axios/HTTP)". Your Web Browser's hardware Window.Crypto API is triggered to compile random strings within seconds on local memory (completely inside a closed box). Therefore, the probability of the critical Key Codes (Tokens) you produce here falling into a log/record file is ZERO; you can safely do copy/paste blending in all your production (Live) projects (React, NodeJs, Python).
Frequently Asked Questions
They are 100% the same in practice and industry usage. UUID was born as a concept (Internet Engineering Task Force / IETF), while GUID is the name/branding used by Microsoft's ecosystem in worlds like .NET.
Classic numbers (Auto-Increment) cause security vulnerabilities. If your URL says 'www.example.com/user/id=50', a cyber pirate can guess that the next customer is number 51 and attack. Moreover, in distributed horizontal servers like MongoDB, counting 1, 2, 3 breaks synchronization. UUID is an unpredictable address.
It varies according to your string architecture. The purest and least space-consuming one is the 'No Hyphen (Hash)' type (DB capacity is relieved when hyphens are removed). The classic (8-4-4-4-12 letter) version supported by most languages is a standard acceptance to provide Readability.
In order to protect your data privacy (e.g., v1 throws your Mac Address into the mix), the modern system valid all over the world only supports Random-architecture (V4 / Version 4) production.