- Nothing generated yet.
All randomness uses crypto.getRandomValues (and crypto.randomUUID for UUID v4). Nothing is sent to a server — generation runs entirely in your browser.
About this tool
What is the UUID & Random ID Generator?
The Wansify UUID & Random ID Generator creates UUID v4 values, Nano IDs, custom random strings and bulk lists of unique identifiers in your browser. Choose length, character set and count, then copy or download the results.
How to use it
- 1Choose UUID v4, Nano ID, or a custom random string.
- 2Set how many IDs to generate and, for custom strings, the length and character set.
- 3Click Generate to create a fresh list.
- 4Copy one ID, copy all, or download the list as a text file.
Features
- Cryptographically strong UUID v4 (RFC 4122)
- URL-safe Nano IDs
- Custom length and character sets (hex, alphanumeric, base64url, custom)
- Bulk generation up to hundreds of IDs at once
- Uppercase, lowercase and hyphen options for UUIDs
- Copy one, copy all, or download as .txt
- Runs entirely in your browser
FAQ
Common questions about the UUID & Random ID Generator
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit value, usually shown as 36 characters with hyphens, used as a unique ID in databases, APIs and distributed systems.
Is UUID v4 unique enough for production?
UUID v4 uses random bits and is the usual choice for application IDs. Collisions are extremely unlikely for normal volumes of generated values.
What is the difference between UUID and Nano ID?
UUIDs are fixed 128-bit identifiers with a standard format. Nano IDs are shorter, URL-safe random strings whose length you choose.
Are generated IDs sent to a server?
No. The tool runs entirely in your browser, so nothing you enter or upload is sent to a Wansify server.
Is the UUID generator free?
Yes. It is free to use with no sign-up.
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