Run results for: Math.random vs crypto.getRandom

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Browser: Chrome 125

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Math.random()

66.0M/s

crypto.getRandomValues()

703K/s

View exact numbers

Test name	Executions per second
✓ Math.random()	66,020,084 Ops/sec
crypto.getRandomValues()	702,677 Ops/sec

Tests:

Math.random()
Math.random()
crypto.getRandomValues()
crypto.getRandomValues(new Uint32Array(1))[0] / 4294967296