UUIDs (sets of 20)

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.”

What are the odds? by Jonathan Hall. 
229af15f-5746-4ee6-bc59-0d5ebc08f32f
ff7b0bf5-d9bf-4552-ae0f-b9d1ae054841
2e106a60-9540-48b3-a5fc-22becedce49d
e8926d96-a140-4668-9d8b-7616c16a3334
65da60ed-6364-4ff2-ad79-75e5c9114027
61ffee7f-aeb6-4828-a79f-0cfa0987b3cd
bfd99bc2-0a02-4901-a9b7-118f6e3ead85
5154440b-c327-48f4-9f9d-8f6768c9375a
e7df78dd-f923-4248-8b02-c9502490d870
d244977c-7be2-41cc-9976-0af4588ea74c
75d2d1d3-3c9c-46bb-b09e-e8f4d3a13a58
3c16feee-2cb3-46ab-89d0-8f08861c5fb2
01704089-9bb7-43ec-9fa2-902330967db0
bd99b21c-7ba3-4fe9-a26a-3c234fbb1aca
b261df0d-df04-4c89-9a39-28f4973a92c6
571faae8-1583-4f76-bd68-d2ab7717e472
19605370-ee6d-489d-8604-a0e68af6d0da
c1700412-0a1c-4b02-9840-4b4f9ae304c7
f9a1c4f2-3553-4446-83fa-675cd17205eb
eed5422a-0adf-4455-a0c1-b3158da34e8e

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'). 

5Q8C-FXG5-V9H9
X797-52XV-8VCM
6XW4-6P2J-FC3H
6FC2-XGPX-44G8
HCR7-55RP-J5J2
CP6P-F33C-F77F
Q893-54P3-WWQ6
QG25-5H35-86M8
QCX5-57WF-444X
XR84-W675-P52C
3WV9-7CCR-932H
MG9X-M6X8-HVM6
F7GX-J5F7-285P
V554-PWVH-CVGW
GVWW-GF6H-MXMJ
8879-GWQ7-8QQG
44MW-H7H8-RFPC
FX7V-4FVV-MG27
336F-GXQ2-MRV9
G9W5-57VW-J6HJ

Double UUID V4

256 bits, 32 bytes

244 bits of entropy, 2.8269553 × 1073 possible IDs 

3927f685-81f1-4950-b8e6-b3e62fbd803c-a344dcef-eb61-413d-94d6-a120a08fa743
15dcd0f4-f19f-401a-9d7d-e506e134932a-14b66b50-d36b-4c86-8203-ce7e2f58ee15
81ed9bea-9f14-4af4-a3a3-054a9709865d-68b3d01f-3b29-485c-8607-1ea0554043b2
bf765c1d-76ca-4c12-920d-9c2e6a47bb49-00ddf5f2-8789-4408-96f7-dfa822efc1d1
d57755e1-c027-4acf-919e-1123c311b33d-d54e8d63-9dc9-4fcb-a79c-3b13841abfd0
0728e2f9-1a6f-4484-a1e9-2ce19a16fc8a-2ebdc1e9-8257-4c3f-9b1d-d0763421790d
0cf00346-82fd-4871-a676-74007dacee6a-f259d814-0237-4897-8fb4-311e47b8f5e8
8b98ac82-0f80-49e8-a240-4a6152a89482-5fda35fc-908e-4d01-a0a2-d5d2ad70258e
27deb432-0b89-42d1-b32d-a4a22e50e037-e5229e30-6dba-4bb8-b539-95978c7fe377
c758d091-a83b-49b3-a121-6186fa42c2c3-aa12f018-e927-4509-ac5c-c9498c3f9776
59152f54-30b1-4440-a3c0-66547d906186-58b9daf9-4f0f-4443-a323-86a6e79f633f
70bc52e3-71cb-4349-9e89-2252b924b0b0-46c25035-ff85-4e68-a4ea-13c92ef6a23e
7330b0d4-a691-4be4-8d15-8aa3bccc93fe-8bf9383a-44b6-48ce-ae5d-c5aa62504d3f
2275453f-4a02-4f73-ac1b-8e51fed58ad1-a9bfaddd-48c6-463c-8e8a-2cf9cb331341
af8190d5-fff8-4fff-ab9f-79faa791a368-84affbd0-8a69-46e3-a7d0-7706e74dfedf
60665a8b-009e-44e7-b42e-140fd6fc1201-0e1427f7-4625-477b-bd3a-c5fc232620dd
48e92ef5-cb0c-4d41-a390-bbabd692e3b5-b9074b09-f49f-47aa-a699-cec5fc3c8035
eff1d407-4f20-4c5b-bac7-f6a6d5368e3f-db6cb3b6-e099-4921-893d-0b018eadffa9
e27b2d2b-1f93-4e8d-a045-9b1f6b28f90c-a2f525de-6be9-48b6-b511-093afaaeb38f
daa0dc1f-3bfa-4986-a976-40f77bb0b3e4-8846d195-7a66-418d-8a05-9140d860cb8e

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. 

019c8ab2-d04f-74b8-a249-30ec296b451b
019c8ab2-d04f-74b8-a249-3693216230f6
019c8ab2-d050-72ad-b752-c1897f5c8e78
019c8ab2-d050-72ad-b752-c48865cd5801
019c8ab2-d050-72ad-b752-ca9ca65803ea
019c8ab2-d050-72ad-b752-cf0afb4a88df
019c8ab2-d050-72ad-b752-d02a27951c3e
019c8ab2-d050-72ad-b752-d6a3ff4875de
019c8ab2-d050-72ad-b752-daa87c0d9cf7
019c8ab2-d050-72ad-b752-df48e5125e96
019c8ab2-d050-72ad-b752-e3d92aadc77d
019c8ab2-d050-72ad-b752-e78bf359a9d9
019c8ab2-d050-72ad-b752-eada062b5a7a
019c8ab2-d050-72ad-b752-ec7da19002ff
019c8ab2-d050-72ad-b752-f1e248285eb2
019c8ab2-d050-72ad-b752-f4141dc9a044
019c8ab2-d050-72ad-b752-f817367a605e
019c8ab2-d050-72ad-b752-fdd01c2638c7
019c8ab2-d050-72ad-b753-00b2e5505522
019c8ab2-d050-72ad-b753-05328e6eb026

Names (Short)

Randomly generated people names. 

Lydia Elsie
Winny Missie
Kelcey Halie
Melisandra Niki
Danni Eustacia
Genni Roby
Albertine Vevay
Ernestine Fidelia
Betteann Shawnee
Addi Jeanne
Tallulah Drusi
Willie Sharron
Gabbi Gianina
Clementia Mable
Lenette Mildrid
Matilda Katrina
Genevra Rowena
Frannie Annaliese
Ortensia Wendeline
Thea Melantha

Names (Long)

Randomly generated people names. 

Fallon Konstance Orelle
Gillie Vale Rafaelita
Maire Lisha Brigitta
Audi Janey Diannne
Corrina Sheila Diana
Emlynn Nessa Virginia
Chery Davita Erma
Peta Rakel Tonye
Pat Gaye Flossy
Junie Halli Caressa
Lory Xenia Essa
Norine Bell Jocelin
Kayla Jenna Ingunna
Amalia Isa Kizzie
Jyoti Rosene Simonette
Cathrine Sande Damaris
Melony Nicolette Isahella
Georgine Eachelle Camellia
Erma Bliss Olva
Ceciley Shena Filippa

Countries

Randomly generated country names. 

Morocco
Antigua & Barbuda
Costa Rica
Philippines
Vatican City
Sudan
United Nations
Slovenia
France
Ukraine
Dominican Republic
Comoros
Belgium
Swaziland
Macedonia
Israel
Canary Islands
American Samoa
Peru
Tokelau

Passwords

Randomly generated secure passwords. 

P#k&ZkLzpE(hg-M@VM#)
z,_qH$<)pLFz8^ZH3d;o
gSswH12rvtN2ORH$y,HM
RcbFT[b0tEvL{C[Y{yIi
F1QG5AQpd$5L*5DY=*D4
Zb[D91-Q]jkA*zg]OTt>
ve%FFD5xlMikv#Mld]fR
KxAO8z|f7Sg({=P}HEpq
%IN^j3Aj$QV7-7CYk}qA
Zu|>&[RRQZd|6NjD#k9o
bT[d<n4zdY$;n{[2xfr@
)EN}OgmeMqYN|=&CFhg)
h8,dm0bjD&c$C6H#!V<j
iOFlt%W2+)#Fqaz&&=g:
)+.@vAA2!)rydr3QU6sT
9X(kq0)RQNN{6NJ2<n<C
<u#9ZtH>#W0kYc005:h3
@(OSol6Z+]*1rV}B9Du^
c=v>{k[pLR)js[_86!$y
ZV.W}Rd6wO4v-)4{AUHv

Process Folder Names

Sequentially generated process, human-readable, folder names. 

20260223-133140-PQVJF2
20260223-133140-5XQGRX
20260223-133140-QMHP76
20260223-133140-HWXQR8
20260223-133140-42XJRR
20260223-133140-72J37M
20260223-133140-4QW4R4
20260223-133140-F4GV5C
20260223-133140-WV682V
20260223-133140-M6XMRF
20260223-133140-JFF545
20260223-133140-PJP74X
20260223-133140-RW3XXJ
20260223-133140-W9P34J
20260223-133140-Q8GXQ5
20260223-133140-GC4F2J
20260223-133140-GQ6WQG
20260223-133140-358GG8
20260223-133140-G6PGW8
20260223-133140-X9WGXH

Google-like IDs

Randomly generated Google-like 'sub' IDs. 

760361232181898600959
623777641806126704552
489161199850380796167
992423659087123416401
324126885541598527530
088389225437977588100
994677060106318973775
613837900978352968166
955826057180423018311
850433117005515565531
669698859320817827905
965572434050946323841
797178643161672105753
851889247163239318128
499655084496243508017
264313294211867206710
962236211066491608345
383952911984790928003
096767137741152654300
463299440404672091836

Unix Timestamps

Randomly generated Unix timestamps from the past 2 months. 

1770159301
1770850489
1767643409
1770522145
1769685177
1766909669
1771500243
1767977241
1770160646
1770332313
1768480876
1766626642
1771237798
1769489438
1767631881
1771283790
1770248914
1766835048
1768372197
1767919467

GUIDs

Randomly generated GUIDs. 

_1wG2RYfapfe
X_k4PDfGjUQ3
AA5p3Jgx2fK3
LNlS16B2TuJA
urTldbp9Ysys
hUrPYSvbxCDB
tNChHPL5z8IL
Fmud4vP2yqkF
lLDc8MnV59u0
A3WCJYhNr5fQ
QrqWnuRwJdlq
ryU3pmhZVK2k
57_NnS14j09k
pw9D_U_OWcWf
BKvWzNIaMTOW
OGT8X-usq40G
33Jww_4yhVcP
FD1TcpoqXXS6
ezWkYq5R684m
-gdJ5GzcSYXA