Run results for: crypto.randomUUID() vs crypto.getRandomValues()

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_6_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Brave/1 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.6.2

Device Platform: Mobile

Date tested: 10 months ago

uuid

9K/s

random

3K/s

View exact numbers

Test name	Executions per second
✓ uuid	8,932 Ops/sec
random	2,698 Ops/sec

Script Preparation code:

iterations = 1000

Tests:

uuid
const arr = []; for (let i = 0; i < iterations; i++) { arr.push(crypto.randomUUID()); }
random
const arr = []; for (let i = 0; i < iterations; i++) { arr.push(crypto.getRandomValues(new Uint8Array(16))); }