Listing latest benchmark results

Historical Performance Data aggregated from 13 community runs

Desktop Results:
Chrome 7 runs
spread
7.0M/s
Object.assign
6.4M/s
JSON.stringify
996K/s
structuredClone
277K/s

Fastest: spread (25.4x faster)

View exact numbers
  • ✓ spread: 7,023,620 ops/sec
  • • Object.assign: 6,366,092 ops/sec
  • • JSON.stringify: 996,418 ops/sec
  • • structuredClone: 276,569 ops/sec
Firefox 6 runs
Object.assign
37.2M/s
spread
15.8M/s
JSON.stringify
1.1M/s
structuredClone
947K/s

Fastest: Object.assign (39.3x faster)

View exact numbers
  • ✓ Object.assign: 37,221,480 ops/sec
  • • spread: 15,812,526 ops/sec
  • • JSON.stringify: 1,061,596 ops/sec
  • • structuredClone: 947,336 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
Firefox 150 Ubuntu Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:150.0) Gecko/20100101 Firefox/150.0 2 months ago
Firefox 143 Mac OS X 10.15 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:143.0) Gecko/20100101 Firefox/143.0 9 months ago
Firefox 143 Mac OS X 10.15 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:143.0) Gecko/20100101 Firefox/143.0 9 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 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 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
Firefox 143 Linux Mozilla/5.0 (X11; Linux x86_64; rv:143.0) Gecko/20100101 Firefox/143.0 10 months ago
Firefox 143 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:143.0) Gecko/20100101 Firefox/143.0 10 months ago
Chrome 137 Linux Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36 one year ago
Chrome 137 Linux Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36 one year ago
Chrome 131 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 one year ago
Firefox 133 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:133.0) Gecko/20100101 Firefox/133.0 one year ago
Chrome 121 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36 2 years ago