jsPerf.app is an online JavaScript performance benchmark test runner & jsperf.com mirror. It is a complete rewrite in homage to the once excellent jsperf.com now with hopefully a more modern & maintainable codebase.

jsperf.com URLs are mirrored at the same path, e.g:

https://jsperf.com/negative-modulo/2

Can be accessed at:

https://jsperf.app/negative-modulo/2

Image preloading r1@3$5^

Benchmark created on September 12, 2011

Test runner

Ready to run.

Testing in
Test		Ops/sec
new Image()	`var a=new Image();`	ready
createElement('img')	`var a=document.createElement("img");`	ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

Revision 1: published on September 12, 2011
Revision 2: published on January 3, 2013
Revision 3: published on April 15, 2013
Revision 4: published by Denise Palasits on August 23, 2013