UUID/NanoID Generator
Cryptographically strong IDs using your browser.
UUID v4
NanoID
How to Generate UUIDs and NanoIDs?
UUID v4:
- Enter the number of UUIDs you want (1-1000).
- Click Generate to create cryptographically secure UUIDs.
- Click Copy to copy all generated UUIDs to clipboard.
NanoID:
- Set the desired length (4-128 characters).
- Enter the number of IDs you want (1-1000).
- Click Generate to create URL-friendly NanoIDs.
- Click Copy to copy all generated IDs.
Frequently Asked Questions
What types of IDs can I generate?
You can generate UUID v4 (random), UUID v1 (time-based), CUID, nanoid, and simple random strings of configurable length and character set.
What is the difference between UUID v1 and UUID v4?
UUID v4 is randomly generated with no predictable pattern — preferred for most use cases. UUID v1 is time-based and encodes the MAC address and timestamp, making it sortable but potentially privacy-sensitive.
Can I generate multiple IDs at once?
Yes. Set the quantity field to generate up to 100 IDs in a single batch. All results can be copied to the clipboard at once.
Are the generated IDs truly unique?
UUID v4 uses cryptographically random bits, making collisions astronomically unlikely (1 in 2^122). For database primary keys and session tokens they are effectively unique in practice.
