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. 
4883f5f1-70ff-4cd5-b579-5997b66267b2
bc355c76-3818-4cbe-bfc4-89ecd03bdb59
79d81cc7-8216-483b-a447-16dcbf6a3923
aa5ce66d-c9e2-40d3-892e-67118282bd18
2559598c-abf1-475d-9d95-ad9beae5bf8b
d59d9ba4-15ba-44c7-870c-8d21fd7a4fa4
617c85cc-3dff-4ad2-995c-931f5c8f4353
81bfa293-1158-4aae-ad47-87b59fbd5af3
f7512604-ae31-42ee-9580-b74ff45c5d0e
7ebe4fb5-5aff-45d9-b0ef-ce3bc16f3b95
81229103-11e6-4608-9da3-85b486c34533
947ae028-13af-439d-a903-7cc467878f30
33cd94e7-166e-42cd-b1bf-a85c4bf3f413
52601154-ff58-45fb-8e2b-928bc3004271
8b79feff-2338-40b7-9e6d-98e61a4bf45b
53a47944-e525-4360-9c54-a703ee3289ec
17c8dd76-f877-46e4-b253-929a83cc4858
d544aa21-7524-4a88-a4bd-6946cf6f6610
fbb088b3-889a-4cf2-b225-efa2a3fbad28
061982a0-bb3f-4aa8-a888-e767e1b65780

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'). 

RPX9-965R-P4CM
75GX-6MVF-H24X
G3Q6-JPQJ-M8C9
M372-42RG-5527
6CQ2-J5G9-P9CG
FCR4-MXXP-R33M
HG9M-XCGW-MWXW
H562-H7RF-85C7
RJGQ-986M-J6PF
GXW5-Q4JH-G334
R98P-M5P7-VJW5
HPP9-WH3H-5WJG
Q2J5-22CJ-FRH7
MJ72-2XRJ-XV76
6FCH-PFWF-FH6H
9PWC-MM99-RQRG
RHHP-X88G-8JQP
J2HF-RQHM-94VJ
V9QH-JH83-GHJ6
74XX-CV88-C2FF

Double UUID V4

256 bits, 32 bytes

244 bits of entropy, 2.8269553 × 1073 possible IDs 

ff16c989-c19f-48fa-93a0-11fa4de51aee-03e09fb3-d636-4604-abc6-d3eff89299fc
202fb3e7-71de-4229-ad7d-12012f0ea700-86ad1fbe-c8fa-4627-84ef-76161d3ef05c
1c268d39-6be3-4d43-a6b2-cf1647f408ad-baae50eb-3f69-4dad-a38a-5b6c1a1251e2
6e9cd399-ac41-47de-8b34-22a0f95146fe-85b11762-0e16-4bfc-b8f8-e53767064354
2be63c5d-b326-4908-90f7-bd30aa570c59-268c8de6-4259-4ac1-ab8b-9f113b13cfae
1b086035-f679-4b19-8c11-28c9f73bc52e-8832a8f7-cd3c-4d25-88ca-622d44cc1544
af47687e-e2c9-4592-a43e-24912d624b5a-2307f5ed-2d74-490e-b15e-87f7e985b789
8661d583-b059-448c-8bf4-a03724371107-d2c4c90a-d77f-40cd-b0df-214bb9b45a80
003ee470-71b9-4b62-b523-26fcff1a3c63-e2716613-7828-4cdc-85fd-504539b7eb24
29d7e03a-5497-4a71-8872-433faa9c1f63-0cd3f428-b5ea-42a3-a72d-40bbd5027859
43e579b2-91b5-49fe-850e-291eac401543-a68b819a-d308-46a0-8f1c-640ad96b373f
94e48114-f626-4558-9137-17216f025657-46ed7f5d-c7f3-4fca-9a4f-e118adedfc7c
76825543-bb4f-474e-b653-4be4047666a8-0143c982-d379-43f7-9e1e-2b2e7afd49ca
cefa1ff5-7f87-4443-b981-c6bcffeb4430-33e32cf4-1687-4466-b466-8af20d3ce88a
a1e1779a-dbfa-4061-86be-8a8b7fa71e64-47e529d2-aeca-4e2f-a36e-5afa1deb7b18
88d4cb38-c862-4970-b14e-92dc6af89cf1-3f76c951-c49c-45df-82c5-4f310f4edf37
7339b289-3016-49b5-91e8-fcddcf5cbee5-4a21deb8-85b3-42b7-920e-bd250425c38b
e198fdee-03d8-486d-9cde-4a236361820e-49b577f5-2b30-42b6-8e3d-8b85d106f358
69c887bf-579a-40f8-9a99-0e2ef5472dd3-f21965e3-fb02-465f-9ad6-cd3c465ab250
35c2c758-c776-4117-9074-b3f68a3bb193-3efdb656-6c29-4b5e-8a9c-df910a87ca76

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-8d9d-728e-aace-4b4bb2ded89e
01a01b8f-8d9e-7479-801a-3825638a0d5b
01a01b8f-8d9e-7479-801a-3efdf7011fd4
01a01b8f-8d9e-7479-801a-434f0ef13985
01a01b8f-8d9e-7479-801a-451fff7e051e
01a01b8f-8d9e-7479-801a-4891acdcb51e
01a01b8f-8d9e-7479-801a-4d9be76616db
01a01b8f-8d9e-7479-801a-52a8754f3a5e
01a01b8f-8d9e-7479-801a-54ac9396aa2d
01a01b8f-8d9e-7479-801a-5aeb16b29a32
01a01b8f-8d9e-7479-801a-5d7ebe19bc3d
01a01b8f-8d9e-7479-801a-62c1ba03c5d8
01a01b8f-8d9e-7479-801a-65917b3ff7a9
01a01b8f-8d9e-7479-801a-6b50a2b1e3e3
01a01b8f-8d9e-7479-801a-6fb4c1eb7dc0
01a01b8f-8d9e-7479-801a-72a8037d23ce
01a01b8f-8d9e-7479-801a-75087d736a73
01a01b8f-8d9e-7479-801a-7ac504c90027
01a01b8f-8d9e-7479-801a-7f541b8d35af
01a01b8f-8d9e-7479-801a-8109efdd7db1

Names (Short)

Randomly generated people names. 

Sheilah Josy
Collen Idette
Katharine Charmine
Dannye Ermina
Concordia Nelly
Karee Heidie
Jacqui Roseanne
Minnnie Samaria
Hyacinthia Melitta
Daveen Coreen
Merrie Genevra
Phyllys Violette
Georgetta Thekla
Lani Eddy
Orsola Danyelle
Gizela Fernande
Modesta Dode
Fanchette Henriette
Cassondra Coletta
Arabella Ninetta

Names (Long)

Randomly generated people names. 

Kissiah Winifred Hedvige
Marin Ruby Marcelle
Lorain Vinnie Livvie
Justina Fayth Cary
Melamie Madelin Sarina
Theressa Bernie Jeri
Latrena Sigrid Siobhan
Cthrine Viki Lana
Carmine Ruthann Dorette
Flossie Carilyn Tomi
Dion Saraann Alex
Emilie Mariette Veradis
Karlyn Brit Emyle
Ashley Tricia Max
Lisette Janice Beverly
Julee Emmalyn Eunice
Liane Janka Florette
Kerry Carree Marilyn
Danette Vanni Rickie
Joellen Latisha Aigneis

Countries

Randomly generated country names. 

Fiji
Tunisia
Macedonia
Iran
South Georgia & South Sandwich Islands
Australia
Hong Kong SAR China
Ecuador
Somalia
Micronesia
Ukraine
British Virgin Islands
Palestinian Territories
Lithuania
Swaziland
India
Kenya
Saudi Arabia
Armenia
Jamaica

Passwords

Randomly generated secure passwords. 

z)tA=bdjkM0lF<w]rGM,
cO)^x]CK1esc+sM&o.1v
<LB9fFh3l|r}WwwriGT)
64l7p4ozz@S7EvzfW(8l
ddv3AiNChjuRKwJ$>3Y^
>07jI)mvNPVa>gg-u{PM
k4y=1qV]=qG&F:GNj6U5
0(aJiPoH#2=zWfXpdqh.
-MT}3FN5No1{V$bAaw!(
hllRYX[B}G)z@,f}8{Ni
l$ipiT5MFUH(vMds$5bx
I&9WLAjodQniNfk+[CVE
:HFebD[KZqKpSatHx[oU
ksNJ;rIvqEfzYbtb=y^.
|Mf62s0zgO93JgHE-j}O
:CvT2KcS&iS;aEuBb^L2
$!}m{GqD$Tfvj)aID0%<
W21R96ryV,J-:xA0Ieq0
k]r@PU}-i9E.}&DekHKP
qIHUb+Ze!HojBC;3$7G?

Process Folder Names

Sequentially generated process, human-readable, folder names. 

20260819-194627-3V8557
20260819-194627-XJH537
20260819-194627-M8H9V7
20260819-194627-7495RX
20260819-194627-7X982F
20260819-194627-Q6F8W6
20260819-194627-VF44J2
20260819-194627-X7RFGG
20260819-194627-G4XWX7
20260819-194627-QCC4GJ
20260819-194627-93P964
20260819-194627-V97M9Q
20260819-194627-8W3M3J
20260819-194627-JVCC2H
20260819-194627-2P9JXF
20260819-194627-9GJRCR
20260819-194627-QQGX3Q
20260819-194627-FVW575
20260819-194627-HV28WW
20260819-194627-V7HR3M

Google-like IDs

Randomly generated Google-like 'sub' IDs. 

917204916951821044194
990277981873771215378
615022637016675996945
435859436271656697046
548419652524347091478
796653956113293098979
618535478718731807372
429198487555724821849
281484100963518210315
410522266155533903282
166624111500926568566
658605370950342468923
156149116504150380983
276129481246792425245
135048222004402375039
309775121906663847754
329294314025676922218
584998010217725701299
364297902262780060548
662479979843511239824

Unix Timestamps

Randomly generated Unix timestamps from the past 2 months. 

1783436545
1784478817
1786236875
1781973909
1782979414
1786743445
1786308462
1782410844
1782844110
1785371786
1786057053
1783390478
1785989125
1783977063
1786240199
1786180004
1786781093
1782768151
1786717927
1784649650

GUIDs

Randomly generated GUIDs. 

xXcMcHlsiakc
DplECtnEHqt1
J00M-mSKsLh1
f_hS1I82_l6V
bHUEn59hPOyz
dGb16ygzb8d9
d_NocmmJG2rN
0ltbnZmgec0d
H-oDcidpzEJX
zTuHFyGv_vpg
dUY3O3yEwaC_
A3UZdOpwqG2_
7AzEJiqHYOoJ
VhlmAy0jpVjf
Xrp1B5FpT7nP
4FDzwXifOAkB
PMVjjHCZmY5u
4veegLoJJgh7
Dxnr8AgMwqWK
JhpTY---FtyV