UUID Generator
Generate UUID version 4 values with the Web Crypto API.
UUIDs are created on your device and are not stored by MiniFyPNG.
Uses crypto.randomUUID() when available (cryptographically strong randomness).
What is a UUID v4?
A 128-bit identifier with random bits, commonly used as a unique ID.
How to generate a UUID
- 1
Open the tool
No input file is required.
- 2
Generate
Creates a UUID v4 using the Web Crypto API (cryptographically strong randomness).
- 3
Copy
Copy the UUID into your app or database.
UUID Generator FAQ
Which version?
Version 4 (random). Not time-based v1 or name-based v5.
Stored on a server?
No. Values exist only in your browser session until you copy them.
Collision risk?
UUID v4 collision probability is negligible for normal app usage.
Related tools?
Random String Generator; Password Generator.