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.”

323a1338-0581-46e7-91cd-79edd002d7b1
2890dd4e-9dc5-41d0-90c4-27bf19ae9f9e
c5ea0fb7-f338-4c68-bb0e-820abd3bf690
59c4bca7-7e34-4960-b0c4-8e59c3470756
73d14a1f-5106-4bd3-beaf-5a271cc63714
bbd85bc8-afa6-4d0e-a246-996f1a3d6a87
24d6fd2b-392e-4d0d-80ec-e5cf41228d83
422652ef-4ae4-4455-81e0-85821053b5eb
0c703429-d5ce-4d70-a253-2914abd23cdb
6dafe432-78e6-4d6c-aeee-23c52f16e9fa
    

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').

5HGV-7MH3-W5F7
X674-X9QR-W8GX
PVWJ-749Q-H523
2QW3-G568-R98F
JPGR-286G-F9P4
H45Q-CGP9-W7CX
MJ2G-P98C-W5Q5
836H-GXH4-VJRP
V695-QXV4-5J8F
Q2CX-XRGF-34MF
    

Double UUID V4

256 bits, 32 bytes

244 bits of entropy, 2.8269553 × 10⁷³ possible IDs

15bc99cd-12f3-4b2d-b745-02561f1cb4cc-1a8d184c-e8f8-49b4-a626-cbb2aa99aa9f
102ab569-3673-4529-8b64-e3cc30aca2ab-4e545f0c-4fc3-4741-85cc-bd35fe8b1e8c
6e0c9918-8a9d-4605-ac31-0d02aeec28d3-0dac624d-be56-421f-acb9-92776176a535
f86f278b-31f0-42b2-9cd5-49a3329dcb7f-2fbfa930-89c1-439e-8cc2-822937cd4b56
1028e2f4-a917-4cae-9a98-5395052dadcf-599a222d-5ce5-4322-9761-3614f508c812
f29ed839-b219-4d6d-954e-c1b82506226a-29041070-304c-413a-92c8-2a16c114aab1
a62d84ea-1fb0-46a8-8d7f-80ce4acfadc4-5e0706ef-e705-471a-9248-0e73d2489789
ba5be85e-7c59-4bb2-a6c1-bede595193a8-7a3dcbae-e5c6-46cb-8e4b-245f858cf188
c8f8e992-84e3-417b-b0ff-d2258c282543-eae0e26f-019c-4642-aa7f-555aeaac2797
f2431877-f21c-4c38-9253-23d6c130e140-c15fc40c-f3fe-46ca-bb11-da9ec7f4b759
    

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.

019cad0c-d2fc-7668-b669-96d27e288be9
019cad0c-d2fd-77da-a796-f67f81bf90ca
019cad0c-d2fd-77da-a796-fa820107dc07
019cad0c-d2fe-709d-bcd8-66818872e136
019cad0c-d2fe-709d-bcd8-6a6637a8ee26
019cad0c-d2fe-709d-bcd8-6f6207e1aaaf
019cad0c-d2fe-709d-bcd8-70e3dced6c08
019cad0c-d2fe-709d-bcd8-740b83650f68
019cad0c-d2fe-709d-bcd8-788aa1095c71
019cad0c-d2fe-709d-bcd8-7d490a0ef72c
    

Names (Short)

Randomly generated people names.

Winny Zabrina
Gui Annabell
Noemi Shea
Melinde Felice
Martina Samantha
Rebbecca Antonie
Adriana Alfie
Kimberlyn Josefa
Meghann Sammy
Sherill Brinn
    

Names (Long)

Randomly generated people names.

Nellie Fiona Morganica
Alexa Alane Cherye
Jojo Rae Katerina
Ulrike Edna Ninetta
Courtney Cordy Ermina
Nertie Constantina Carie
Carroll Tamara Lynda
Sara Marje Sunny
Lacy Gwen Melicent
Caye Fredia Cloe
    

Countries

Randomly generated country names.

Tristan da Cunha
Austria
São Tomé & Príncipe
Niger
Ceuta & Melilla
Norfolk Island
Ascension Island
Iran
Bahamas
Eurozone
    

Passwords

Randomly generated secure passwords.

UU@FZbsG-,D6Xd.C9mCn
NM]dCpdHqa3]LRBpt4Ya
>|PfJ9hzhqg}(wxGn3v.
5M#g^Hd0sT#PN$:fh(*U
1vC3^<ww_i=)PQ;[&o=H
n@J4d#tTr|%K#81?MZPl
GK.829?DuXrUHRmU*hS(
XkE[$v6@WAHbKc+lL1LE
baWFYd}VU9K(<MUZ<JQG
Fb8n5<|^5o:KmIT_5C2G
    

Process Folder Names

Sequentially generated process, human-readable, folder names.

20260302-053704-P9HRFV
20260302-053704-WPQ57M
20260302-053704-H4763Q
20260302-053704-H8Q9PQ
20260302-053704-9QRX73
20260302-053704-HX2XF6
20260302-053704-6C96C7
20260302-053704-MJMMG3
20260302-053704-Q9587V
20260302-053704-XQQ4V8
    

Google-like IDs

Randomly generated Google-like 'sub' IDs.

416499532268506110943
453445939256539380578
387793774811478730255
536272621077750563312
938118965775400103098
017140304867140572465
846958839429791398017
242239828655821751336
116335322372859523071
447975386668767431450
    

Unix Timestamps

Randomly generated Unix timestamps from the past 2 months.

1769570715
1767850838
1770093432
1768229878
1767566325
1772400045
1770688897
1769655229
1772242428
1772037953
    

GUIDs

Randomly generated GUIDs.

Mqb2J5AfRcAD
oYRdHeQjdGvg
aeJ6rCIVq5bL
qY7I4UU_8xf4
038XNQYlq4e_
DW95q2kHO9yN
uqdKlEjzvBNW
BKrQdrc4PnLM
47ljahJXtXgQ
URpovAiw0OXy