Cryptographic randomness
UUIDs are generated with the browser Crypto API.
UUID Generator
Generate up to 100 cryptographically random UUID version 4 identifiers in your browser.
UUID Generator
Generate cryptographically random UUID version 4 identifiers.
All processing happens locally in your browser.
How to use UUID Generator
- 1
Choose how many UUIDs to create, from 1 to 100.
- 2
Select Process to generate random UUID version 4 values.
- 3
Copy the list or download it as a text file.
Why use this tool?
Bulk generation
Create up to 100 identifiers in one action.
Standard format
Every result follows the widely used UUID version 4 representation.
Frequently asked questions
Are these UUIDs version 4?
Yes. The tool uses crypto.randomUUID(), which generates RFC 4122 version 4 UUIDs.
Are generated UUIDs stored?
No. They exist only in your current browser session unless you copy or download them.
Related tools
Everyday Utilities
Remove Duplicate Lines
Remove repeated lines while preserving their first occurrence.
Sort Lines
Sort lines naturally, alphabetically, or by length.
JSON Formatter and Validator
Validate, pretty-print, or minify JSON.
Base64 Encode/Decode
Encode Unicode text to Base64 or decode it back to text.
URL Encode/Decode
Encode or decode URL components.
File Checksum Calculator
Calculate SHA-1, SHA-256, SHA-384, or SHA-512 file hashes.