Listing latest benchmark results

JSON.stringify(JSON.parse())

477K/s

Lodash cloneDeep

444K/s

Native structuredClone

283K/s

Fastest: JSON.stringify(JSON.parse()) (1.7x faster)

View exact numbers

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Browser	OS	User Agent	When Created
Chrome 145	Mac OS X 10.15.7	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36	4 months ago
Opera 118	Mac OS X 10.15.7	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36 OPR/118.0.0.0	one year ago
Opera 118	Mac OS X 10.15.7	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36 OPR/118.0.0.0	one year ago
Chrome 134	Windows	Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36	one year ago
Chrome 133	Windows	Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36	one year ago
Firefox 134	Ubuntu	Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0	one year ago
Chrome 131	Mac OS X 10.15.7	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36	one year ago
Chrome 131	Mac OS X 10.15.7	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36	one year ago
Firefox 132	Windows	Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:132.0) Gecko/20100101 Firefox/132.0	one year ago
Chrome 130	Mac OS X 10.15.7	Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36	one year ago

Browser

User Agent

When Created

Chrome 145

Mac OS X 10.15.7

4 months ago

Opera 118

Mac OS X 10.15.7

one year ago

Opera 118