UUID V4

128 bits, 16 bytes

122 bits of entropy, 5.31691198 × 10³⁶ possible IDs

“...the odds of collision between any two is 1 in 2.71 x 10¹⁸ Put another way, one would need to generate 1 billion v4 UUIDs per second for 85 years to have a 50% chance of a single collision.”

2badaa37-ff2c-442a-a995-7d61f7a1648c
a2d3b425-4d31-4e6e-9334-2f167d4fde2d
5c7ab674-5f3a-42da-b139-f7d06227e1ac
d738bf6a-0906-4294-aee0-2f2b04fc074f
4d23145d-17e5-436f-9283-6055d31230db
36a49b98-f4e9-4da0-82f8-6dc4ac43d92c
00969809-06c8-4870-a19d-0868b75293b4
072ce30d-d2d8-4584-82b1-8fa3bc196648
11383630-8ffa-4834-8281-db25a2662557
9e527030-06e0-4d9f-b84e-aafa3340a583
    

OLC IDs

7 bytes

51.863 bits of entropy, 4.096 × 10¹⁵ possible IDs

Open Location Code (OLC) alphabet Ids. OLC is a geocoding system that encodes latitude and longitude into a short string of characters. The alphabet is simplified to use only uppercase letters and digits, excluding characters that can be easily confused (like '0' and 'O', '1' and 'I').

V2J9-F9MX-2268
GM7P-X6H6-JP59
XCQ3-6G2W-FC8F
M355-CPR3-MM58
5H2G-R4FG-M6MX
5V2X-6JHX-7CWR
3984-3F2X-MPVC
RPR8-HG9W-J8G4
WJW4-RCJ7-C9R2
37XQ-VQCP-HMXH
    

Double UUID V4

256 bits, 32 bytes

244 bits of entropy, 2.8269553 × 10⁷³ possible IDs

4dbbd81c-ab91-4fb2-a273-9929c0690fc6-5ee67f44-68ac-48f8-881e-e5c40c4357f0
e44ffa58-0c7d-48f5-844a-395d2242c977-063f7f5c-82f3-4e1d-8e78-5486da41d608
66c9a645-0a5d-4b81-9a74-f584e31952c8-4b2fd333-7f68-4959-839a-a4fec9e5b147
eee8504a-0a73-4870-bcbf-4ac89996b40b-c2f43854-9cc5-48f7-8f22-3015f738647b
1dc286d5-68be-4a68-9852-de94bc3b9b08-5be5dde6-7e77-4edf-8b38-92acede1fe36
79ae8e28-5094-4645-9f51-e5cfe080d7cf-7d08fdbe-000a-433a-aa75-f97a081f1704
48e01b09-fa17-498f-a090-119e9c797ad9-ec43065a-10b3-4972-b324-2b3d6a9dac97
2d58afec-6c0c-4823-8139-4dac7c959b3f-877036b6-4592-48ea-bc46-bfb2fa44dcc2
697aa2a4-8b98-4fa0-9498-0f37e05f62ba-be4ddd5e-be01-4b21-b512-46cb7213f886
7b92b418-b736-4d65-a652-d4da4c10761f-f931dcad-5f0c-4a1d-81a5-a2ec62fec772
    

UUID V7

Unix ms timestamp (48-bit), random bits (74-bit total). Sortable by time.

Excellent DB performance (sequential inserts); sortable; no MAC leakage. Database primary keys; distributed systems. Recommended for most modern apps/DBs.

019e94ce-9c0b-72df-850c-46757e62ef7e
019e94ce-9c0b-72df-850c-484c1a79df6e
019e94ce-9c0b-72df-850c-4d6bed665af7
019e94ce-9c0b-72df-850c-53dcd40d87eb
019e94ce-9c0b-72df-850c-57f30f866760
019e94ce-9c0c-70c5-9af5-ac05e1243b15
019e94ce-9c0c-70c5-9af5-b099874d3000
019e94ce-9c0c-70c5-9af5-b47f2b91209d
019e94ce-9c0c-70c5-9af5-bb4a9a14ea7d
019e94ce-9c0c-70c5-9af5-bce769859702
    

Names (Short)

Randomly generated people names.

Elset Annabel
Shannah Marley
Karalee Giralda
Ardyth Kimberley
Cristy Debra
Aubrette Tara
Ricca Alvera
Coral Rivi
Janis Kathryn
Traci Sarette
    

Names (Long)

Randomly generated people names.

Aarika Gerry Carmela
Valene Jacynth Muriel
Ivette Tessa Alli
Annora Ruperta Phillis
Lily Ailis Amalle
Celie Min Alina
Tabbitha Brunhilda Lynsey
Matelda Kristi Vilhelmina
Molly Charmain Victoria
Renie Birgit Deva
    

Countries

Randomly generated country names.

Norway
Mauritania
Guinea
Cook Islands
Trinidad & Tobago
Ethiopia
Pitcairn Islands
Tokelau
Nigeria
Equatorial Guinea
    

Passwords

Randomly generated secure passwords.

<pkiqmzlg0OsEq!G(WiZ
2$b{{[Z74$u2_.c[c!Q0
N4EuB(feDXyjRpWfZPtN
Ws)L7-soUZYmj8(5[bR)
V_KhoW-xK&w0z@oO+O[b
H?nk=YLVb@I*@%&rSd0L
|S};Pwvz_VFmqnBK8Dev
dSKszPKD*GK$.<Gl-VB$
%[|K%}Mh>JMN]$]%2DdY
dfK$N|cX;LZEN,yF=<<Q
    

Process Folder Names

Sequentially generated process, human-readable, folder names.

20260604-224348-X3W8X8
20260604-224348-4XWM23
20260604-224348-65C2WH
20260604-224348-89824M
20260604-224348-53MMCR
20260604-224348-7WR52P
20260604-224348-6VMG34
20260604-224348-MPH29J
20260604-224348-WF6PJF
20260604-224348-HHM782
    

Google-like IDs

Randomly generated Google-like 'sub' IDs.

965762665311681275807
687253014039404179837
686080698511464823500
040940440334684634402
530141376026774903738
631206215242532303152
891481070793993919908
054614923609673078456
755341499830529866485
417031724291483130116
    

Unix Timestamps

Randomly generated Unix timestamps from the past 2 months.

1776213531
1776079452
1776656905
1779027354
1777681384
1778534155
1778916225
1777075740
1776249570
1776071604
    

GUIDs

Randomly generated GUIDs.

9XAy8RZ5tIYW
gI-9_uZRbY9Y
CWIz5uXnWIcA
LZvubKTQHhw9
D6Vhai07xryJ
HajcUz-Dv5Er
0De8ae1W_cYE
fi-oEnAvEUHZ
5Z4vLmSgGLh2
sVRCUfXXf-dq