Listing latest benchmark results

Historical Performance Data aggregated from 5 community runs

Desktop Results:
Firefox 5 runs
classList
872K/s
className
9K/s

Fastest: classList (93.8x faster)

View exact numbers
  • ✓ classList: 871,796 ops/sec
  • • className: 9,290 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 140 Linux Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0 one year ago
Firefox 136 Mac OS X 10.15 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0 one year ago
Firefox 135 Ubuntu Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0 one year ago
Mobile Safari 15 iOS 18.3.1 Mozilla/5.0 (iPhone; CPU iPhone OS 18_3_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/135 Mobile/15E148 Version/15.0 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 Edg/133.0.0.0 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 Edg/133.0.0.0 one year ago
Firefox 123 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:123.0) Gecko/20100101 Firefox/123.0 2 years ago
Firefox 123 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:123.0) Gecko/20100101 Firefox/123.0 2 years ago