Run results for: Math.random vs crypto.getRandom

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0

Browser: Firefox 121

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Math.random()

1500.9M/s

crypto.getRandomValues()

1.6M/s

View exact numbers

Test name	Executions per second
✓ Math.random()	1,500,850,176 Ops/sec
crypto.getRandomValues()	1,603,164 Ops/sec

Tests:

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