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. 
573c8f88-df0b-4f97-9c4f-efa604c937e0
e0f6a941-0574-48e0-ab77-7c4f726e3af8
3e41f91a-7fe1-4697-94ef-50feefad37b4
d2c40323-bb20-40d9-81a0-337231b441c3
14cea43b-8157-4227-8eaa-bed8c088996a
fe3861aa-c8ad-4dea-8c5f-8bb97bd11c43
250bacae-a06b-43a3-9651-daebb3ea9cd3
fc3250fc-acfb-4419-9988-140a252ee3e8
42de9806-f8be-44c7-a294-7f1d57160f69
7717913f-0bda-44ff-be20-3c348a77f29a
fad7d9b1-50c8-427c-b0c2-4f773526c38f
6af7600f-a8ab-4ddd-8f33-039a7008adfc
8bafd571-3307-4e91-a7d5-33b37a6b1c09
416f1692-f10f-460d-97f4-e68293cecce7
8bdce8ee-d6fb-403d-9d03-a932dd9944a3
11b6774c-b2f8-466f-aae9-1ca6b9312cce
c64bb085-36f7-4e9f-b652-a597fd4af876
65ad6f8a-7e24-4e5d-8436-d1f3fd306095
2b3da37b-18df-49da-b471-3db255b74699
b6688fae-fb4e-4a13-a047-591adf534bcd

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'). 

CGPJ-9JM7-QQ4H
7C7Q-72GH-H8QF
6RMQ-67W3-79W8
85GW-9CGM-Q5WM
HFMG-3F5X-9X7J
FGJ6-263F-F3WW
997W-G2FV-WPXM
QGR6-MGQ4-X53P
GRH6-7HM8-92W2
V48P-9V47-G453
G4H3-HW39-XHQX
9FJ9-39MM-FW65
V6V3-CCX6-MR8G
V4GF-M848-2H5G
F55P-VV9V-9Q2V
438H-WHM8-V82Q
5JC2-XQVF-GXCX
QXCH-R8HP-76MF
VW7F-99WH-8F54
CM96-78Q4-7HQW

Double UUID V4

256 bits, 32 bytes

244 bits of entropy, 2.8269553 × 1073 possible IDs 

82cd49e5-dbaa-4ada-b8f5-ab15361f9b6f-4325185f-d075-4724-bec5-da6d7e1efb4a
508a75a9-11ca-47ba-8699-81d431c1ce34-27646383-4c67-417a-9adf-63254586a7f5
61b9b6d4-f633-4792-b0f2-69845b2ad1b1-53380a1a-3f7a-4b7d-b705-38c9f24f2026
4107d05b-00fd-4250-b44d-b03e6466bbc1-6a437cce-0798-40f8-9aba-22504d3a37dd
1bc40a67-002f-45ad-bef2-1a6b064ad7d1-3586d499-0155-4929-8966-509b70d25c81
0da4adc8-a966-4db4-8a5b-51c7dcd4bac1-981811f2-7b82-45ff-bb09-75b93f032e62
91ed3a86-45b9-46c9-9cdb-39f95f5b358f-15f36c91-4454-4386-8003-017637f04167
b0c13c1a-d877-4491-be96-bdd04c74521e-1fd1a775-0a9b-4d51-a6cb-11b01ffaba4f
fc7dc048-52ad-4de6-9c5a-e2b64e5ddcf0-ae44c311-bcea-4942-9a75-4ccc2a78490d
c316842c-377d-465d-a1f9-c2553ba54404-5eb40189-c97a-42e1-aa62-c4e8bf3ac824
566efb41-137b-4715-b245-1056da0357c9-f8afd506-1457-4da9-aba1-6f3def52a339
e305dd40-0598-4a59-b6b4-88e81d4b5af9-40e05219-ebb8-4e69-b8a3-a3bf3228969c
36b05f77-c609-417a-9cbb-c793a507c085-b117d384-563d-4a50-a19d-1848936705d1
5520563f-a662-4fc8-8a4d-a1e664d84ff3-65ff6957-a4bf-4e90-943b-e85c40935051
ecca36f5-d570-4639-938b-902b09e5ea4a-ad39eb87-4656-4058-84c9-72503150bf50
5f317191-9b25-4612-8795-9ac3c3718c09-942213a7-ee12-4089-831e-222d6854fdc2
cb43f51e-d356-4eca-9467-9600a98d2ee6-21e16e03-334f-4de5-8026-e500589837dc
fa5ff063-a1b8-402d-b4ff-285c90fa9472-7f4010cc-aee7-40cf-bcbd-ab46cd7f3ceb
a1752422-56e9-4c6d-b4e9-4b39e55fc4d7-a005fcab-f050-4da9-8471-ea92937b3ec6
cb1672c4-6ba0-4af6-a7f1-f953cd67cced-057cb11b-1a40-4818-93a5-d3147b03124d

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. 

019fee08-f6a6-73e9-8d5e-1721eed4612f
019fee08-f6a8-77ab-adaa-d83622d394c1
019fee08-f6a8-77ab-adaa-dd1eeac8bfe0
019fee08-f6a8-77ab-adaa-e3c8d95f8c48
019fee08-f6a8-77ab-adaa-e5a0686c25b5
019fee08-f6a8-77ab-adaa-eac81cd75a23
019fee08-f6a8-77ab-adaa-efa78d9bfdc3
019fee08-f6a8-77ab-adaa-f0e5402f9dc5
019fee08-f6a8-77ab-adaa-f5d7d9a2136f
019fee08-f6a9-732c-9c4c-40ee73626119
019fee08-f6a9-732c-9c4c-45755b8c2995
019fee08-f6a9-732c-9c4c-4957c841ab9d
019fee08-f6a9-732c-9c4c-4fba6ab43cc0
019fee08-f6a9-732c-9c4c-528788a83482
019fee08-f6a9-732c-9c4c-5660068eb0af
019fee08-f6a9-732c-9c4c-5af52b4087c4
019fee08-f6a9-732c-9c4c-5da2ad4fdc2a
019fee08-f6a9-732c-9c4c-63cc15f52cd9
019fee08-f6a9-732c-9c4c-64fb55e5e200
019fee08-f6a9-732c-9c4c-691a70f17aab

Names (Short)

Randomly generated people names. 

Barby Noelyn
Eolande Leonanie
Bernette Fey
Sarene Timi
Carol-jean Concordia
Blisse Blancha
Tonya Brigitta
Melly Petrina
Julietta Marcelia
Blinny Albina
Romonda Vivien
Morganica Anselma
Jeri Vin
Nari Jemie
Ardelle Adiana
Viviene Ronda
Marijo Merola
Pammy Madelina
Shannon Tamqrah
Kelsy Marline

Names (Long)

Randomly generated people names. 

Giorgia Christiane Althea
Koral Robina Kessia
Danyette Moyra Glory
Billye Kalindi Amandi
Madge Carolyn Jennie
Lula Janessa Arleta
Ursa Milzie Tiphany
Emili Beverie Kaela
Nada Jordanna Dionne
Blakelee Quintilla Ketti
Mirna Renell Georgia
Julita Essy Dorine
Faun Yovonnda Dorolice
Annaliese Tiffanie Rebbecca
Ingrid Belicia Leanor
Claudia Candi Arabela
Enriqueta Shana Fionna
Lidia Ella Dorey
Carroll Angelia Thekla
Rhodie Adora Gail

Countries

Randomly generated country names. 

Macedonia
United Arab Emirates
Algeria
Honduras
Belgium
Taiwan
Bahrain
Montserrat
Åland Islands
Macau SAR China
Grenada
Oman
Singapore
Swaziland
Central African Republic
Trinidad & Tobago
Malaysia
Tajikistan
Kyrgyzstan
New Zealand

Passwords

Randomly generated secure passwords. 

b2^6W22IT04!tIuveNWD
L[4)g0=A=S6Y^I{OT6ag
yRM4U8sBl|xClTroyjT8
7$W9WfzwtZb,QbnP&9oe
lu92S>.U8f;T4^E^aqr:
-{u;exm0a|g9+,aL_4}7
Om2AV))DsrqcXSzDgBGj
AOS>x%xvuYd@-%LStP@e
0y165jJGg1Nm&xw[;:d2
hGx{aQ25j$Np(>RnvMLM
YyW:m0GZn+X1j4a_#z6g
EWbK)Pa|fkz-_Tbq<rzr
VDx8o>GybOY4KL2EKgPq
:Ain}J1FsGMF=GiwZ@^u
wEq?-]%N<jgk%+W!G#Q%
]steIymvT#)C]pzA..=M
{fh%akiQYe>Z1,9u!{D^
NT3([jQI}8n|%LJ.A{mY
&|:DIoa!8M}rw%BF+Vh]
Z+A$i}s#;-G&2}VK>6<3

Process Folder Names

Sequentially generated process, human-readable, folder names. 

20260810-233632-P3F697
20260810-233632-293WHC
20260810-233632-F7CH6Q
20260810-233632-FXRH23
20260810-233632-C3W937
20260810-233632-HWQ6GF
20260810-233632-HPRR6F
20260810-233632-3HC78C
20260810-233632-298HP9
20260810-233632-JCFJHF
20260810-233632-CR5FCM
20260810-233632-924937
20260810-233632-R84C79
20260810-233632-VVVX64
20260810-233632-3XRC26
20260810-233632-H99H57
20260810-233632-XP7WPX
20260810-233632-RXQ85R
20260810-233632-PHX6GQ
20260810-233632-Q9CRPR

Google-like IDs

Randomly generated Google-like 'sub' IDs. 

354108188274770573726
411427531637033933747
299874696501227603708
018459810688406851980
468239609236309923573
416335069956736584697
805099034613109174101
629243624795383209713
473522960631245053992
368982197559461882605
815311346451200770092
040575265351932393134
939361310535746389305
965662660257030099294
475593070511074303338
806916846501557067596
683540307083819382567
247023063195141179494
958601913498638999981
369034733451897185950

Unix Timestamps

Randomly generated Unix timestamps from the past 2 months. 

1782000824
1781382419
1783941238
1783400786
1782376896
1783348195
1781224664
1783816830
1783447074
1782004142
1786196313
1781678548
1784383362
1783576985
1782957099
1782050176
1785406519
1782932032
1782054617
1783620662

GUIDs

Randomly generated GUIDs. 

zW7-aoNbZn2x
bmt-JV2uL__B
rzIGzbLvDPKs
idPa-T-epqj0
BH2r7nIh9yOw
HWq5iKY54KiZ
JOAQfMEfccsR
qUXGQSuo242o
NWO86YsN5fuI
nlxKVFFQV1ms
LHvZQw9Dw6KV
q-ksWDtHWjFj
jtv0hFJb9i_p
a7PpgM2sOxSj
HezT4Li_X1uP
D3xwwsHTL-Jd
2N44pLQN8FtS
d17eAJzBocgA
VXQgSxMpPyPi
tPdToN5_GUuB