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.”

f8911bbf-a3be-4926-9942-c502b7f5a48c
fb8f19be-9970-4075-a04b-2a6ccbfa9e58
2cdd4f58-182c-4f60-bb53-37c57cbd5142
a05b294c-1afa-4682-900d-33c34a33aa6a
ad374733-33a6-4964-9e42-c403cc3a60a7
91b51703-3bd2-484a-a708-3ed980f0a17b
4665d1ce-888e-43da-9381-5332a63d5cfe
4d14142b-895b-40bd-bbad-1f5acbbc821a
240167d4-c3cc-4f67-abd8-ee10eb231fee
579c5ac2-16fa-45cc-822d-a92a5af441f2
    

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').

W65G-XHP8-Q832
H9W7-RW2C-98PH
F55C-H2XH-FPJM
X5MX-FJMF-XCCV
9VRJ-V5W6-FRJ2
QGQ3-QH2P-PWVR
29RG-MG87-23XP
H4JP-F222-J725
J4CX-WP7W-Q79F
278J-VCPH-FQ74
    

Double UUID V4

256 bits, 32 bytes

244 bits of entropy, 2.8269553 × 10⁷³ possible IDs

4f6fcee4-86c3-4d5e-bb57-db92977a96e9-a4db5412-176f-46f6-8ffd-c144d4c9643b
c95bc2fe-5f4e-4296-9c34-54572f7eb0c2-26fbe90a-a5cb-4271-9a4b-0718ef05f91c
7848550d-e77a-4257-8a59-e0fd8b38b55e-651602e5-d958-418a-90bd-a6d24976216b
a85e3dcc-b687-48cf-8168-0f29289b0897-7ad971a1-2435-454f-a642-46f0ad3b47a8
139bcc12-9799-4970-8fa4-b10bc21e62ff-73e16cb0-f518-4d12-976c-e24f2c5ac955
afdcc143-c88c-43e1-91ad-824a159c4e1f-f617bc9b-619e-4cb5-bf7c-7944a3e795e5
7a55bd43-7e10-4388-ab3b-5ea99a39ab75-e9273bdd-dfb6-441b-a741-d8c69cf30b22
b615c205-5982-4e63-af06-7b32bb4991b7-b612ef6a-560e-4ce7-ba06-320c4be337a2
3bdec85f-6f3c-4982-add5-6f78b86a46ff-a8dd8c08-1a00-4cbb-95bf-c62f94e21163
76d6aaf5-8eb8-4df5-8fbd-0ca6e01972c5-fb6dfa7a-1947-41c0-b16b-adff4c14ec66
    

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.

019e950a-ddb6-74fe-b56b-ccc6cdd5aa15
019e950a-ddb6-74fe-b56b-d14ca41362ff
019e950a-ddb6-74fe-b56b-d5014a839737
019e950a-ddb6-74fe-b56b-d93e998067ed
019e950a-ddb6-74fe-b56b-df918d4d0f6e
019e950a-ddb6-74fe-b56b-e2d7f28a1880
019e950a-ddb6-74fe-b56b-e5f2e40913af
019e950a-ddb6-74fe-b56b-e840a8829616
019e950a-ddb6-74fe-b56b-ee61442fcb16
019e950a-ddb7-73ee-80d9-3f40d496fe50
    

Names (Short)

Randomly generated people names.

Bette Eugenie
Eartha Kendra
Agnes Farica
Angy Nerti
Constancia Alfy
Tammi Collete
Anett Marcille
Janie Rozele
Ruthy Sidonnie
Beryle Steffi
    

Names (Long)

Randomly generated people names.

Clarine Alma Lori
Hanna Julianna Dory
Anatola Jemmie Min
Wendi Harlene Lindie
Beryle Lelah Jacquenetta
Cassandry Charlean Valentia
Margie Bebe Demetra
Elsbeth Ellene Cahra
Aleen Ellene Courtney
Ashla Mel Rosella
    

Countries

Randomly generated country names.

French Southern Territories
Hong Kong SAR China
Nigeria
Macau SAR China
Iceland
Hungary
Samoa
Ireland
Moldova
Niger
    

Passwords

Randomly generated secure passwords.

j#aZm:x3*KX_&$6<?NcA
S0e8X>Oi=^vq_M}GipE^
7{xe@]asn0t!!lpX7}JW
]v9sf+!le-p*}F&_o@$a
Z6WeQH@8VeG2yd4>LEm3
|0+[z8rka^@ff^4@E.mr
#F!{[A*dcV)+t2we]##s
6}QI|3;(k|Cf59BED45{
FRyS>^<}>pj-wS(r}LdM
:9yIsmp*5JLoVZ2zdbQS
    

Process Folder Names

Sequentially generated process, human-readable, folder names.

20260604-234937-R583GQ
20260604-234937-3MR424
20260604-234937-5HPXWP
20260604-234937-V5RC2P
20260604-234937-C39M2W
20260604-234937-9CWX6W
20260604-234937-MRF4J3
20260604-234937-6XW6GH
20260604-234937-XHGWXH
20260604-234937-C985FJ
    

Google-like IDs

Randomly generated Google-like 'sub' IDs.

549448693419063679758
311335537507826952951
954570068643634447364
122458213025315698989
762645464150138671150
540856925202713306819
528631216156254915184
277019915129493622267
512533335816877191209
753573236938692766847
    

Unix Timestamps

Randomly generated Unix timestamps from the past 2 months.

1777195867
1780461906
1776085537
1776848962
1779552449
1777408770
1779337291
1777021430
1777764180
1778326053
    

GUIDs

Randomly generated GUIDs.

yEoSOv-kCfte
anV-wDpsf1rW
9RewQJQabrYv
1QVjeanbkV2w
VaJ3g2tIDvTo
ngwCgcSFf0yH
O68qC9G5zyRF
a31BvnZLz-XV
Qq7CUNCmIC8U
64L-_Ad5wijC