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.”

7e02bf63-3738-44b0-8c3b-f5b35e932474
d53d6bdc-6989-4fb3-bb7f-fab3ffe2c3f8
234f69f9-ae3c-4a7c-8693-6d53bdfdf4a6
2b367177-7459-4c2d-aed2-8368eb91476e
660870b9-9639-4115-8c18-f7cf503c7aa3
60fc8c66-5937-4795-871c-d1b8b9825de1
36074930-d594-40c9-866e-55320860d938
e2902550-9f33-4465-a2c2-d6226e95454e
5965da7a-310d-4554-8fb3-4addbc58a0b3
b4d03d1c-6545-4e6f-9c19-16871b861b1d
    

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').

VVJJ-VQQ2-W3RR
JC66-WMXF-66M7
G4P8-H2C6-WM28
2GQ7-VX9H-F8CM
GW67-QVVM-CWQV
H9JV-2762-4VH9
FRM6-26PP-R97Q
P9XX-VQRM-QG37
GR39-X83P-MV75
Q375-4P8H-CP3G
    

Double UUID V4

256 bits, 32 bytes

244 bits of entropy, 2.8269553 × 10⁷³ possible IDs

bdff69aa-7bc9-4061-9f78-24551a849087-8705755c-11ab-41cb-aeaa-47312491759e
1560dc4d-5112-47cd-bffd-c0556c0b55e9-de5a2504-8f2e-46a8-b2e6-69f7c0d012c8
1c41c39b-9b4c-4c97-8685-8a1920979af5-010d7866-d769-4a94-b691-0b269eb71551
054b0a02-e5d4-43a1-8ff7-7604818154da-b566f440-198f-46dc-9c3f-f6f6e2ea40a8
522d7523-9785-4b1f-b331-17d649ce93bf-d96f6080-aa25-4334-8a91-b85247599c89
d7b1fe0d-3430-4a40-838f-ecc45f179256-b0290d0b-4f6c-4da3-b905-9430c614619d
3ba0b32a-eb27-4650-94dd-80a9013dd37c-2b88f1e2-3565-485b-8285-335f286bc149
0f929d6b-ee40-43f9-aa07-deea9c216bc9-a2284375-36c9-4778-9e92-f4c7d568bd9b
f3ba65f3-e5e5-44e4-a7a0-c4393f691dce-7a14522e-96b3-48ce-b178-9df1830474ae
c81cf1a9-dd74-4bd2-8dcf-4f8befef8df7-1392459d-1d5f-43ec-ad16-39c58bd31270
    

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.

019fee09-33d5-72ae-9c91-60c2171c7fe6
019fee09-33d5-72ae-9c91-64cc89bbda70
019fee09-33d5-72ae-9c91-6ae653b9f14d
019fee09-33d5-72ae-9c91-6e24ec03e915
019fee09-33d6-777b-be25-9c30af6e0d8a
019fee09-33d6-777b-be25-a001b849de8a
019fee09-33d6-777b-be25-a4f8238f6f35
019fee09-33d6-777b-be25-ab5ac4aaa52c
019fee09-33d6-777b-be25-ae3a53506ba6
019fee09-33d6-777b-be25-b1a59b4650dc
    

Names (Short)

Randomly generated people names.

Luce Gwyneth
Joyan Mozelle
Lindy Sibylla
Valery Claudina
Becka Mabel
Fredrika Bianka
Tabbi Sela
Aila Bonita
Hanna Garland
Ashly Athena
    

Names (Long)

Randomly generated people names.

Julissa Klarrisa Nicolea
Jilli Verile Phylis
Melisande Dulci Consuelo
Daloris Riannon Alecia
Josy Drucy Susana
Ava Sharline Henryetta
Milli Jasmina Thomasina
Dulce Estrellita Estella
Angel Ingaborg Trix
Faydra Faun Regina
    

Countries

Randomly generated country names.

United Kingdom
South Georgia & South Sandwich Islands
Caribbean Netherlands
Georgia
Faroe Islands
Ghana
Mauritius
South Sudan
Costa Rica
Christmas Island
    

Passwords

Randomly generated secure passwords.

G|K%aF%$CP_^5Zfw_Ml5
Dr26;QZq%K3E-:K)r?W1
N!|k]X8uJM|k.44wsH(+
!6jda&h*z-{Dz)H4q&T#
D0o*BN!PU}dujNyX=!Jz
<WJAs#(H8%!xFKXCveVR
?Wq{>Z3:aa,y^Fdg+ZcS
EPCDA1e}]qj|vc$=INEC
+h-^HQ{XU(gF=2XZaX%F
p33]Ui79]LJ3!ptAu@6R
    

Process Folder Names

Sequentially generated process, human-readable, folder names.

20260810-233648-FQ9478
20260810-233648-763CCH
20260810-233648-23VXFJ
20260810-233648-3CVMWH
20260810-233648-8WRVM2
20260810-233648-G7R852
20260810-233648-QXFQP9
20260810-233648-XXCHPJ
20260810-233648-GFR8JH
20260810-233648-5965V3
    

Google-like IDs

Randomly generated Google-like 'sub' IDs.

901998580694998640379
397845270799834755054
085203374942584945852
654373465578775956719
903573201433807326750
831729459647559648971
127136133530572409850
756840315937135631285
600181526774380578239
888069314840302697000
    

Unix Timestamps

Randomly generated Unix timestamps from the past 2 months.

1783761824
1784104630
1782182875
1786330811
1781776024
1785950416
1784714061
1786382368
1784458268
1783252919
    

GUIDs

Randomly generated GUIDs.

vFxnuL-lOXSg
dVlBQyvje7yo
-CMpUMJyAeum
MVCFAWnQrpdj
tFl1xKkxA3rh
agKBU2R2tPk-
kPgOd6IMW95w
lS6H3uDbdONu
lJvNwHYxW6TQ
9nOMYwheFL49