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AwesomeGUID

Awesome

A list of awesome things related to Globally Unique Identifiers. Sorry if this whole idea is a bit mis-guid-ed.

Tools

Used Guids MUST Be Added To This Folder

used_guids.jpeg

Recycling and Upcycling

Instead of single-use guids, consider donating them for reliable reuse by an approved, accredited and reputable GUID recycler.

Please Recycle GUIDS here

Frequently Asked Questions

What are the chances of collision?

If every human on Earth worked as a GUID generator, and they spent their entire working life generating guids at one guid per second, without even stopping for lunch, then by the time every human on earth had retired, the chances of a collision would be about 50%.

Do guids make the best database identifiers?

Yes. But I don't use them much for that myself.

Should you put GUIDs in URLs?

No. Don't Put Guids in URLs

And if you do, 1 is enough!

Can I register a domain named after a specific guid value?

Yes you certainly can! But you need to hurry as they are going fast.

For example, this one is already taken:

And certainly http://00000000-0000-0000-0000-000000000001.com is parked.

But as of April 2022, http://00000000-0000-0000-0000-000000000002.com is still available.

Get in on it while you can.

There will never be another opportunity like this.

Explanations

Pronunciation Guide

Global GUID database

Behold

Some beautiful code from @buhakmeh

code where all of the names are guids

Guids! Guids! As far as the eye can see!

Twitter Accounts for Lovers of The Guid

How to Generate a Guid in ANY language

And by any language I mean this very small subset of languages I've got examples for. PRs welcome.

Generate a guid in javascript

function S4() {
    return (((1+Math.random())*0x10000)|0).toString(16).substring(1);
}
function guid() {
    return (S4()+S4()+"-"+S4()+"-"+S4()+"-"+S4()+"-"+S4()+S4()+S4());
}

Generate a guid in PowerShell

As a string, and with brackets...

"{$([guid]::NewGuid())}"

Without brackets, and as a guid not as a string...

[guid]::NewGuid()

Generate a guid in "C#"

System.Guid.NewGuid().ToString("N");
1431959a9c074d298d1787a59687f0fd

System.Guid.NewGuid().ToString("D");
7e760907-099b-41d9-83f7-c290dc6f059a

System.Guid.NewGuid().ToString("B");
{ff34e10c-db89-4f52-8757-43c56e20bf00}

System.Guid.NewGuid().ToString("P");
(91865f50-5112-4868-bd20-a6b4b741d04d)

System.Guid.NewGuid().ToString("X");
{0xaf4533d0,0xffbc,0x4716,{0x9f,0x01,0x5c,0x4c,0x29,0xdf,0x22,0xe7}}

Generate a guid in .Net

System.Guid.NewGuid()