Listing latest benchmark results

Historical Performance Data aggregated from 12 community runs

Desktop Results:
Chrome 12 runs
Create new object from scratch
162.9M/s
Create new object while copying
159.1M/s
Manually copying properties
146.9M/s
Using the spread operator
49.0M/s
Using Object.assign
12.9M/s
JSON
3.1M/s
StructuredClone
808K/s

Fastest: Create new object from scratch (201.6x faster)

View exact numbers
  • ✓ Create new object from scratch: 162,857,216 ops/sec
  • • Create new object while copying: 159,094,688 ops/sec
  • • Manually copying properties: 146,901,056 ops/sec
  • • Using the spread operator: 49,019,032 ops/sec
  • • Using Object.assign: 12,917,174 ops/sec
  • • JSON: 3,130,641 ops/sec
  • • StructuredClone: 807,705 ops/sec

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

Browser OS User Agent When Created
Opera Mobile 95 Android Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Mobile Safari/537.36 OPR/95.0.0.0 5 months ago
Chrome 144 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36 6 months ago
Chrome 144 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36 6 months ago
Chrome 144 Linux Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36 6 months ago
Mobile Safari 26 iOS 18.6 Mozilla/5.0 (iPhone; CPU iPhone OS 18_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.2 Mobile/15E148 Safari/604.1 Ddg/26.2 6 months ago
Chrome 142 Mac OS X 10.15.7 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36 8 months ago
Firefox 145 Mac OS X 10.15 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:145.0) Gecko/20100101 Firefox/145.0 8 months ago
Chrome 141 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 9 months ago
Chrome 140 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36 10 months ago
Chrome 141 Mac OS X 10.15.7 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 Edg/141.0.0.0 10 months ago
Firefox 140 Linux Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0 10 months ago
Chrome 140 Mac OS X 10.15.7 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36 Edg/140.0.0.0 10 months ago
Chrome 141 Mac OS X 10.15.7 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 10 months ago
Chrome 139 Linux Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36 one year ago
Firefox 141 Linux Mozilla/5.0 (X11; Linux x86_64; rv:141.0) Gecko/20100101 Firefox/141.0 one year ago
Safari 18 Mac OS X 10.15.7 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.5 Safari/605.1.15 one year ago
Chrome 135 Mac OS X 10.15.7 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36 one year ago
Chrome Mobile 132 Android Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Mobile Safari/537.36 one year ago
Chrome 132 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36 one year ago