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.”

cdda196a-4016-4076-8b83-d7dc02ffbd22
02eb3a96-3737-4444-8de2-d22a1095d72f
96954c2a-667a-46bd-806b-b7bdefb95086
5467426e-179d-45e8-b08b-f3dc090afdcb
20c27819-3c90-44f0-bc4b-ad14727b5335
cebd4b86-bf5b-4aef-8a80-5481be356ec4
f1cc5687-4a88-46cf-a70c-01ebc3254d40
ae518e87-2905-42d4-8409-3bf9033e00b5
6e4c4c6a-0688-49f5-8c1b-c2b71d02c3c9
583d2bc2-7093-44ee-9c81-ab343235574e
    

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').

CPV2-XX8M-MHHP
3V3G-HPFP-VM2G
WP2G-5VC4-984V
87RC-3Q8G-69G8
HVVF-6W5P-PQPQ
PJ2R-M5V3-HQ76
QRWR-M675-JFM2
79G2-Q9RF-5RFW
VQVQ-8JV7-GQ32
8VJF-99JH-FVXG
    

Double UUID V4

256 bits, 32 bytes

244 bits of entropy, 2.8269553 × 10⁷³ possible IDs

2820b6c3-61a3-419f-98ee-a12b95076134-f36267a9-3fe5-45cd-b89f-5a5758781086
7bdcf81e-ffa5-47e9-a910-513b5520d6d5-4ef65919-680c-4b4a-a32e-84d182c49819
11d4e8e2-4e41-4a69-b26a-527d971ce15b-9eaf3d82-57dd-43a1-a57b-421ab2add403
c3d7cef9-c1c0-4387-b427-7112569b346d-516d67f5-13a9-4fc1-b29e-081785d405e2
cc3a29d7-83f1-4488-9026-a2b3fb0ca7a3-9b1ff5e1-b2be-4174-b20b-af6a51a746e2
31558ca4-02fb-46c1-bbf3-a094c55b2665-5d8b73d2-b07d-4ce1-a5d3-c3270a7aa2a3
c5fe9597-2391-4fad-9fd3-a8680ed4576c-9c223ffc-2bf9-44be-8bd1-ab286920e589
4d0f6c41-400a-46b9-811c-dfd2781a5077-5104c1ae-beae-4943-ac9c-ea08f08a4eba
4d72efe6-653c-4978-a7c3-0388d6e98e5b-6f76c663-dee1-4fc5-b136-f2ac5290ad43
2b72940b-314a-4683-98aa-0a65b7580e48-999cffe4-6538-40af-82e4-2350e509051e
    

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.

019f8565-2850-7522-a78f-1de7fba83f87
019f8565-2852-778a-a5fd-ac6de12fab73
019f8565-2852-778a-a5fd-b0089acc9b70
019f8565-2852-778a-a5fd-b76ec9c5606f
019f8565-2852-778a-a5fd-b8995dcd2910
019f8565-2852-778a-a5fd-bca838df3d85
019f8565-2853-70ee-af1d-2c4dcf370825
019f8565-2853-70ee-af1d-314d76f4d079
019f8565-2853-70ee-af1d-368a08460695
019f8565-2853-70ee-af1d-39af6b05e000
    

Names (Short)

Randomly generated people names.

Lindsey Gayel
Diannne Dacia
Elianora Marilyn
Teresita Roana
Gennie Teddy
Bren Ania
Kettie Kyla
Susie Desirae
Leelah Arlana
Zsazsa Morena
    

Names (Long)

Randomly generated people names.

Denyse Corenda Chantal
Gracia Briney Hally
Goldia Stephani Karole
Carin Ashla Carmel
Theodora Jennica Gladys
Anica Eleonore Leelah
Willie Laurella Alene
Tami Arlyn Marigold
Mae Karie Clementia
Inga Lynnett Kandace
    

Countries

Randomly generated country names.

French Guiana
Tanzania
Dominican Republic
Libya
Montenegro
Bolivia
Somalia
Samoa
Togo
Montserrat
    

Passwords

Randomly generated secure passwords.

N}Uzj=V(fr;DxW0Hymkp
cX1[9P:lDTLJrV*)>a1d
3&Q1.#0Pp(.q:*KB915i
S{H#,05(p]c=h*9(Pa?*
?e<=gk?g)Tv.G+Ri+ID&
50}@[Q7$Y$dDfh)xh-66
n6@?tGB+[n(ggwyD3x,+
5q#iTVe^j|(aGJWD@sTi
gT9[^-rG!mUGDU)8S[N6
afF[pOt5E1]q:(4]>P97
    

Process Folder Names

Sequentially generated process, human-readable, folder names.

20260721-155707-RPQGQ3
20260721-155707-WMQCRQ
20260721-155707-XHM87H
20260721-155707-39956H
20260721-155707-VMCCJ5
20260721-155707-2FPP54
20260721-155707-88QQRQ
20260721-155707-98PGVW
20260721-155707-MJ6CPW
20260721-155707-34VC36
    

Google-like IDs

Randomly generated Google-like 'sub' IDs.

104113982341651549389
843696084246647448507
865483346659010337042
006995263737392198084
609679559761290242144
605294473370568564043
225791178253737443971
108424261275772017502
772597506099449113816
321693347647704670647
    

Unix Timestamps

Randomly generated Unix timestamps from the past 2 months.

1779732506
1782396839
1780847546
1781127093
1784450534
1783977605
1781890635
1780662019
1783384860
1780444953
    

GUIDs

Randomly generated GUIDs.

r2wdC-HAJWEV
z7NYLfyU_u95
PYVYH9HBiRd4
J9QAvzeV1kG_
gDMYZWrMel6N
CrdPCzt_4Yaf
AiCQkZ5Gef68
Xz0Yz6f7vprj
aHHgF_4adscK
V1BEt5mpKXaK