Run results for: JSON.parse() vs. eval()

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.0.1 Safari/605.1.15

Browser: Safari 26

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 5 months ago

JSON.parse()

4.8M/s

eval()

2.3M/s

View exact numbers

Test name	Executions per second
✓ JSON.parse()	4,758,537 Ops/sec
eval()	2,345,066 Ops/sec

Script Preparation code:

var jsonString = '{"key1": "val1", "key2": 7}'

Tests: