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. 
f3881c0a-eb51-40da-9910-3a877bbe078e
39324388-298c-4f48-9a3b-43fdd7e610b9
bcc27468-f899-430e-b171-53d19b5b12a1
af12bdfb-8dfd-4003-9d18-210109b5f832
6afc6fd7-9176-4024-90f3-080504ce7ab4
eb0c4d43-0b92-4b3c-aa11-b09b1c8cbb88
d2f45f0a-5044-4e5e-a3c3-32ba437199d4
cb2b395f-4792-4a6b-a36d-ad51a725052f
841f390c-6a5d-42e6-8589-7cff03eb9d2b
e1db5792-9310-4504-b230-e359c5ac9215
0235a4b2-3841-43e1-9fe4-3371d8ec7114
18f3413c-a1d6-4c05-9313-a76408b848f0
6f46f035-1268-40dc-9ca0-b1c2060efd35
66bfee4a-5eb7-4d2e-88ce-c842f7a61969
3cf40e19-6749-4733-bf09-c011bb82089b
ec5c34f6-3b59-48dc-a936-385a888b16df
58addc51-f949-430e-a094-759d43a9849f
2e546808-0c8d-4ec5-bb8e-47cbdd8f91bd
8df0511b-e34f-4046-8dcb-e769208c6207
6a8a0d75-ffb8-4516-ac87-e36c065abd2e

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'). 

XGM9-MJVR-7R98
P74M-83VH-M6X3
JG46-R9G5-VJCH
W2QQ-H967-7WG4
PJ57-QJHP-FHRM
RP93-FXRJ-WPP5
5976-XPWF-R9QR
3W27-FW3P-2PQ7
C52H-FPCW-7648
73XF-VQGR-CXQM
2CMM-X93M-P7F5
VRQ8-3VM5-256H
3HCP-QPP5-6VJW
XJH4-6WPM-C2WJ
4MM9-J37C-WR6F
P7HP-C4XR-3RJM
R887-5Q8R-CW85
J4PV-CWXR-2892
X6R5-H6RQ-WM9F
7G76-H2QQ-XMH2

Double UUID V4

256 bits, 32 bytes

244 bits of entropy, 2.8269553 × 1073 possible IDs 

0b36d4f5-ec20-49fb-8dd8-98585f69985c-4c75e140-09fa-43ec-9a50-9cacd1d4c993
8a02fbc2-15fb-46ab-accc-4c97aa7c2c69-4b1d0f52-b19e-439a-a503-67d0356b0b74
947a1f3a-aeae-4ae6-b2b1-426143808e60-23bfc4c6-9a8d-4b44-88fd-5ff690f2896b
602a2b21-2fee-414e-bc82-98cada4a7fcf-9d2fa5b2-7139-412b-9014-8298e015fa8e
6ccb8344-abc3-4a81-be75-225977d74db6-976f5851-c71b-4040-9045-c7b417235f60
5b278b54-c049-4141-8828-627c4bd269ee-61a0cc63-ce25-4970-96b5-3cc2dae357a2
3a12a05b-5241-4176-a14f-7196974a08f1-0286cea1-bf39-40ca-a8b9-262010852c41
e00d3dfa-63bb-4558-a45c-5418f5381280-9f44c783-6ec0-4282-9786-03c4ee119ded
83a9fe1d-a5dc-4a28-9c75-5a767e2117ee-bcbcac69-0c0c-4f18-ba7f-4dcee36fed1d
d6e0ef75-fec0-4b1e-b7b3-bdc45b7ab73b-82fbd771-03ee-43fa-ae19-b1c27fc59663
0a73f1d7-12f6-467e-b88f-13edcbb2101f-d79cb84c-7782-490f-bd59-072c66c2cc3a
459e5ff8-2558-421d-abab-05608925a138-d7bb4376-d2c7-4f0c-80b8-45b6e8d44e60
dfbd9181-8a51-4fd8-8fbf-0391b70a97b4-571e408e-a280-4560-92f3-2d121534ce20
5151273a-3630-4b1e-a00f-1973e43eccec-3735a472-aaad-4fbd-9f91-60ab0f63d03a
a8c36df2-8471-4128-9ca1-59b0e75284ad-a5e316a2-683d-4899-8d0d-ba492f24fefb
b965d5d6-45dc-44c0-8b19-603779e08c2c-337c07fc-c09b-498b-b6a5-8f4e418c5cca
9540ee7e-4c22-49cb-80c2-a52aa5908afd-0f3484d0-45d5-4462-a9cf-76b83de9ba94
f940f040-e25b-4dbe-82bc-360034ad2e32-369d8ff9-1578-430e-a211-d1348b3a444a
1da3350e-9365-4559-985b-8a9656007e6a-c9aa4f8e-1193-48e1-b0e7-887662ce5132
87c3291b-864e-4dcb-8209-ac71e14a245a-9ee24dac-dc1a-4841-ae6f-b9819d9b0c1f

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. 

019cd52a-39f3-760b-8ab5-0cacf33a8229
019cd52a-39f3-760b-8ab5-13015cdc934a
019cd52a-39f3-760b-8ab5-14f403e1939a
019cd52a-39f3-760b-8ab5-1a9de5182622
019cd52a-39f3-760b-8ab5-1eced18897f7
019cd52a-39f3-760b-8ab5-226d071169b3
019cd52a-39f3-760b-8ab5-265f340d0594
019cd52a-39f4-719a-8607-6ebf7aced1b6
019cd52a-39f4-719a-8607-72611aa0adea
019cd52a-39f4-719a-8607-76ce9e08fa7e
019cd52a-39f4-719a-8607-79a84c87f25e
019cd52a-39f4-719a-8607-7e9fb0072043
019cd52a-39f4-719a-8607-811492ecdb1a
019cd52a-39f4-719a-8607-86fb3faf41bd
019cd52a-39f4-719a-8607-8adfea0e3bf9
019cd52a-39f4-719a-8607-8d67f63cf4a7
019cd52a-39f4-719a-8607-9347033d00cc
019cd52a-39f4-719a-8607-95c9aab01949
019cd52a-39f4-719a-8607-982f3f68e34e
019cd52a-39f4-719a-8607-9c0225557bdc

Names (Short)

Randomly generated people names. 

Hortensia Maryanna
Daisey Dian
Evangelina Agnese
Carlene Nessie
Claudina Willy
Cathleen Marigold
Marje Trish
Charlot Shela
Sayre Dahlia
Desdemona Idelle
Pippy Jodie
Maisey Sydelle
Hannah Letta
Gisele Faustine
Merrily Katalin
Myrna Charlot
Mora Marjorie
Lanny Starr
Florie Fallon
Rasia Oralle

Names (Long)

Randomly generated people names. 

Juliana Jane Melinde
Jenica Tobey Konstance
Juli Josy Lilla
Hanni Elianora Viki
Vania Ginnie Hephzibah
Rosetta Antonia Jeanie
Manya Katalin Betsey
Patrizia Olva Valaree
Chrissy Claude Natala
Hedwiga Sallyann Leyla
Hetty Marris Madel
Pauline Eugenia Mercie
Tierney Karil Britte
Lorna Antoinette Didi
Cassie Nanice Aubrette
Lena Dionne Queenie
Betti Nicola Calli
Sophi Trish Ariela
Erica Rozamond Dollie
Griselda Nikki Grace

Countries

Randomly generated country names. 

Mexico
United Arab Emirates
India
Sweden
Netherlands
Wallis & Futuna
Guinea-Bissau
Ascension Island
Seychelles
Anguilla
French Polynesia
Moldova
Azerbaijan
Tuvalu
Togo
Croatia
San Marino
Tajikistan
Bahamas
Kazakhstan

Passwords

Randomly generated secure passwords. 

Q]J]yNtmfmHu?RlaGZQa
gTX@$aS_0R_o!*1=hThg
^uip90a]>=px-WG_p&3C
H$aWiB$2vVN.mjVN6z;Z
pih7cQJ)(a5dyZxXu+,(
b>ZG.JiWc+PsA%Ab6PEx
yOrecX&eqZc(uhLW*#S=
fmr[o!(Qhb+Mm}d2C.%4
Tw!}c2mNBDT&HLi*%DY3
l18)Z=^4TE{0}.%-.-,4
^NkD+AioLR_@91e$OF%=
%UYoYh7F*3u{^*_Ite.w
K&ck;}F#w*m<ms={6gKy
f%akwsj,X+VyzbjCa}Nh
Q71QUQOT*fD@3CXz.nD6
)7NwG2xRb|]v(5q&Hee1
QYsPat(-^I55REkP8P1[
f5PbB9XbqS85@R1k+eV2
l=cD.VZNKY#%JBLtRE@#
7QzNQLz2QTD;+p{-+V|N

Process Folder Names

Sequentially generated process, human-readable, folder names. 

20260310-003400-48M7G2
20260310-003400-C8PVH5
20260310-003400-66JM7P
20260310-003400-H7FP7H
20260310-003400-JHW77P
20260310-003400-MHGH86
20260310-003400-V3QGRC
20260310-003400-VQ73V8
20260310-003400-9GRPW6
20260310-003400-PFXW5W
20260310-003400-QJF48G
20260310-003400-RHC865
20260310-003400-WRP64G
20260310-003400-9CWXWP
20260310-003400-2C9676
20260310-003400-9R2W2R
20260310-003400-43VWRX
20260310-003400-X6M8VC
20260310-003400-XJR7RH
20260310-003400-J8HHX4

Google-like IDs

Randomly generated Google-like 'sub' IDs. 

831069467006975908013
799290589994394251272
197500653759951807706
653139588338426025801
918681330774250461230
436675571322721177398
127939587130284844082
492059556785476082925
735664023307764593447
346846814539952325912
820333468139054573187
210888656620289783501
850961972965469543685
758552897121641509988
199202624551091160124
095933875633684651652
496468955218470506234
551538066741584939584
728858071119882671089
477115665559800616812

Unix Timestamps

Randomly generated Unix timestamps from the past 2 months. 

1770364612
1770486731
1770203777
1771760544
1772778207
1770904153
1771115487
1768195871
1772234454
1769815029
1770999798
1768657197
1771196763
1769801561
1769931143
1769043846
1770811060
1769894259
1772870592
1772564536

GUIDs

Randomly generated GUIDs. 

hUeTmra5d_wN
iFVcqfjzum0g
wLkMDz8yRqlm
FFDUMtxNO0pe
faWZQnQLknBn
_N0TOfXQ8oY6
oo_wcvXlxErO
vCt8-zT_bUIw
sUHXJK-Jai-4
nONrAeSBX4q2
71Tp8phBL3pf
3ca8u9HTp508
Bk85T2SlMQyH
VuPP46a8ayta
l2KeDJx3nwGQ
20Fs9QbY0tw3
RlB3z0a4X7cr
EJxlqWTlVrzT
guGM8B8_DBtu
-9UpOrMUO5U8