Generate UUID in Different Languages

bash
uuidgen

  using System;using System.Net;using System.Security.Cryptography;public static class UUIDGenerator{ public static Guid GenerateTimeBasedGuid() { byte[] uuid = new byte[16]; DateTime baseDate = new DateTime(1900, 1, 1); TimeSpan span = DateTime.Now - baseDate; byte[] time = BitConverter.GetBytes((long)(span.TotalMilliseconds * 10000L)); byte[] clock = BitConverter.GetBytes((short)Environment.TickCount); byte[] node = new byte[6]; RandomNumberGenerator.Create().GetBytes(node); Array.Copy(time, uuid, 8); Array.Copy(clock, 0, uuid, 8, 2); Array.Copy(node, 0, uuid, 10, 6); return new Guid(uuid); }}

UUID v4:

csharp
using System;public class Example{ public static void Main() { Guid uuid = Guid.NewGuid(); Console.WriteLine(uuid); }}

UUID v7: There is no built-in support for UUID v7 in C# yet. You might need to use a third-party library or manually implement it.

Delphi

Delphi lacks native UUID v1, v4, and v7 generation. However, you can use external libraries like JclSysUtils for v4.

Go

UUID v1:

go
import ( "github.com/google/uuid")func main() { uuid := uuid.NewUUID() fmt.Println(uuid)}

UUID v4:

go
import ( "github.com/google/uuid")func main() { uuid := uuid.New() fmt.Println(uuid)}

UUID v7: Currently, Go libraries like google/uuid do not support UUID v7. You might need a custom implementation.

Java

UUID v1:

java
import java.util.UUID;public class Example { public static void main(String[] args) { // Use a library like `com.fasterxml.uuid` for UUID v1 }}

UUID v4:

java
import java.util.UUID;public class Example { public static void main(String[] args) { UUID uuid = UUID.randomUUID(); System.out.println(uuid); }}

UUID v7: You might need an external library or custom implementation for UUID v7.

JavaScript

UUID v1:

javascript
const { v1: uuidv1 } = require('uuid');console.log(uuidv1());

UUID v4:

javascript
const { v4: uuidv4 } = require('uuid');console.log(uuidv4());

UUID v7: As of now, UUID v7 is not available in common libraries like uuid. You might need a custom implementation.

Kotlin

UUID v1:

kotlin
import com.fasterxml.uuid.Generatorsfun main() { val uuid = Generators.timeBasedGenerator().generate() println(uuid)}

UUID v4:

kotlin
import java.util.UUIDfun main() { val uuid = UUID.randomUUID() println(uuid)}

UUID v7: Currently, there's no built-in support for UUID v7 in Kotlin.

PHP

UUID v1:

php
require 'vendor/autoload.php';use Ramsey\Uuid\Uuid;$uuid = Uuid::uuid1();echo $uuid->toString();

UUID v4:

php
require 'vendor/autoload.php';use Ramsey\Uuid\Uuid;$uuid = Uuid::uuid4();echo $uuid->toString();

UUID v7: Ramsey UUID library does not support UUID v7 yet.

Python

UUID v1:

python
import uuidprint(uuid.uuid1())

UUID v4:

python
import uuidprint(uuid.uuid4())

UUID v7: There is no native support for UUID v7 in the Python uuid library yet.

Ruby

UUID v1:

ruby
require 'uuidtools'puts UUIDTools::UUID.timestamp_create

UUID v4:

ruby
require 'securerandom'puts SecureRandom.uuid

UUID v7: No direct support in standard libraries.

Rust

UUID v1:

rust
use uuid::Uuid;fn main() { let uuid = Uuid::new_v1(); println!("{}", uuid);}

UUID v4:

rust
use uuid::Uuid;fn main() { let uuid = Uuid::new_v4(); println!("{}", uuid);}

UUID v7: UUID v7 is not yet supported in Rust's uuid crate.

TypeScript

UUID v1:

typescript
import { v1 as uuidv1 } from 'uuid';console.log(uuidv1());

UUID v4:

typescript
import { v4 as uuidv4 } from 'uuid';console.log(uuidv4());

UUID v7: UUID v7 is not supported in common libraries yet.

VB.NET

UUID v1:

vbnet
Imports SystemModule Module1 Sub Main() ' Use a library or manual implementation for UUID v1 End SubEnd Module

UUID v4:

vbnet
Imports SystemModule Module1 Sub Main() Dim uuid As Guid = Guid.NewGuid() Console.WriteLine(uuid) End SubEnd Module

UUID v7: UUID v7 is not supported natively in VB.NET.

For some languages and UUID versions not directly supported, consider using third-party libraries or custom implementations.