UUID Generator

What is UUID Version 4?

UUID v4 (Universally Unique Identifier version 4) is a specific type of UUID that is randomly generated. It is a 128-bit identifier used to uniquely identify information in computer systems. It is commonly used to create unique identifiers for resources in software systems, such as user IDs, session tokens, or database primary keys.

UUIDs are typically represented as a string of 36 characters, consisting of 32 hexadecimal digits separated by hyphens into five groups. Section 3 of RFC4122 provides the formal definition of UUID string representations. It's 36 characters (32 hex digits + 4 dashes).

How to generate UUIDv4 in NodeJS?

1. Install via npm

                    npm install uuid
                    

2. Create a UUID

import { v4 as uuidv4 } from 'uuid';
                uuidv4();
                

const { v4: uuidv4 } = require('uuid');
                uuidv4();
                

How to generate UUIDv4 in Browser?

                    crypto.randomUUID()
                    

How to generate UUIDv4 in Python?

                    import uuid
                    uuid.uuid4()