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.”

273fa027-4c82-4149-b68b-eeb94f50b77b
9aec05d5-16ea-45ac-b6d7-34f78abd7f68
d2854229-dd0f-4ae1-94f6-32f85dac906d
538de2ca-7a05-4de8-979a-77fb44b9f879
f9e677f4-4f4e-49bf-97ac-bf5de6b47c33
04cb28fc-76ca-4edc-9d2c-f286dfdb0c8f
13944c56-2a78-436d-be3b-8e26f9ba8f19
af3e3b25-f2a2-4969-b051-51b9612f41bb
1ff78596-8893-479e-b47c-09407c93c1cc
2074f954-6058-4b7e-819d-e64d11e75f0f
    

OLC IDs

12 characters, 12 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').

MJ36-H9P2-QH8G
HRMP-7V3J-CCHQ
6W8C-3F48-X3MP
XMX4-6MMG-MQXP
H6FH-MVCJ-PCJ3
C5FW-6G5H-Q7HM
622Q-6RJX-JVCG
CP6P-G795-2336
46C3-2684-57V8
4GM5-PWM7-RR53
    

Double UUID V4

256 bits, 32 bytes

244 bits of entropy, 2.8269553 × 10⁷³ possible IDs

1f2d53d3-f2b9-47d1-9783-26e8e0216b5d-0c56be41-6b8f-4085-bbeb-a72ef91b3f8d
7ba6e335-5336-4316-baec-3290b7d978d2-a0cc6fe9-b95b-40d8-ab51-ead565c7a028
e94df67b-3406-49dc-84eb-07727e6f1162-30722fbd-c29f-4c56-8d5e-17b5ac87cf5b
b2389441-01b0-4d2d-8958-2c3b5da95d6a-716bde52-27b0-4f4a-bfa4-174bae5b8bd8
961770e0-3bcc-4866-b5b5-0d4fc2ad4ad6-f9dc69c0-a6b5-4acd-b7ef-e77ff248a2f8
def05983-7689-4afa-b2e5-0f7c8bbcf858-f2dcda4e-9272-4b6f-9d00-e028e291ca74
699cf69a-520b-4e24-873a-99d072b4de6a-d7b8b86e-e4c0-4c0a-b2bc-5df46a24ddde
9b0c49eb-54ac-45c2-9a0a-2c76c835d4dd-5ed0eafc-4c4b-4002-8fcb-645d21d805b3
03a4ed0c-b6ca-4819-a3e0-3fc81cb0f392-d8c19a15-ced9-4708-b8ed-efbfa705f400
523b5e89-4cf2-4d0a-81e7-4275dc327cbb-7906f596-9183-4b91-8fb6-6017bfa34539
    

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.

01a01b8f-9a27-7242-9101-9c5b55ff654c
01a01b8f-9a2a-76ac-9761-8990cd655c83
01a01b8f-9a2a-76ac-9761-8eced248ec2d
01a01b8f-9a2b-7598-8cfa-3cf13d46f5de
01a01b8f-9a2b-7598-8cfa-43e5b0ff806f
01a01b8f-9a2b-7598-8cfa-4584585aa90f
01a01b8f-9a2b-7598-8cfa-495ab747a26a
01a01b8f-9a2b-7598-8cfa-4c58891d0074
01a01b8f-9a2b-7598-8cfa-52811bbb68c1
01a01b8f-9a2b-7598-8cfa-5475445f99af
    

Names (Short)

Randomly generated people names.

Germana Melessa
Clarissa Ciel
Matelda Annabel
Tobe Louella
Elnora Stephine
Ulrike Grissel
Jelene Debora
Nelia Carry
Christye Merilee
Diann Odette
    

Names (Long)

Randomly generated people names.

Ruthann Dorothy Tana
Rozelle Ellynn Storm
Pat Querida Andeee
Karoline Becka Marcile
Herta Joye Vinnie
Lurleen Marlena Jillana
Cymbre Mary Cynthie
Brunhilde Rhianna Lilith
Kania Meryl Peggy
Prissie Harmonia Myrtle
    

Countries

Randomly generated country names.

Hong Kong SAR China
Nepal
Faroe Islands
Zimbabwe
Thailand
Austria
Sierra Leone
Trinidad & Tobago
Cyprus
St. Helena
    

Passwords

Randomly generated secure passwords.

CQVHY(KlzZ2?},(tzK]9
r6K?1-^vK}kTdwY3%Ctv
tqy5BcN$4JOdM$7r@)j;
89Ol6}_2}vDz:sSvkQO4
@yx[DMKo3R?29Ei+c10v
dhMGHT(+G7KwYJ3?6v#g
F>9yR_U+-Am3*U75{Nuw
*=v)@Xw@p^jC:(kZo61$
;7L:N_[$E]*f6Ii,2Pj+
lwi5:JGC43{O$0CPOSM|
    

Process Folder Names

Sequentially generated process, human-readable, folder names.

20260819-194631-CRJH48
20260819-194631-3HWCPC
20260819-194631-3985VH
20260819-194631-PQ2776
20260819-194631-2V2P4C
20260819-194631-MWJFR7
20260819-194631-HC4MXP
20260819-194631-3JC9PC
20260819-194631-GHH24V
20260819-194631-4JHG94
    

Google-like IDs

Randomly generated Google-like 'sub' IDs.

529690235599954830411
843610866229364760360
260987147633481287941
767925928801603320582
264684669288555380023
317653630825104941014
401859060892552654204
135817551053772862167
501200991631609054475
476826319339857406498
    

Unix Timestamps

Randomly generated Unix timestamps from the past 2 months.

1784790680
1783460394
1783541083
1786308648
1783689307
1784255811
1782895131
1783650597
1782343644
1784624789
    

GUIDs

Randomly generated GUIDs.

GleRGIdNL67R
RW1vejApESY4
wV1CtbFbknrY
SuwPSH8CImZJ
7emNgUvj36TM
dNUPGPcaIiYw
ZrmN8uWS472K
AMUHYkx1lCgd
BFoSI9Fxtzjn
BU8X1MvTGWHp