As some of you probably noticed jsperf is down for some time. But I still need to profile my Javascripts. Is there any possibility to do comparison tests ideally without the help of an external software?

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5 Answers

I decided to build tool like this. First public beta is at

EDIT: 2020-07-12 - v1 released

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jsperf is based on benchmarkjs so using an online code editor (like jsfiddle, jsbin, plunker etc...) and including benchmarkjs as a library will do.

The only feature you won't have will be the compiled results for each browsers. This is just a temporary alternative.

Here is a jsfiddle template :

But since we don't really care about HTML nor CSS I found plunker more suitable. Coupled with systemjs you can then separate your code into multiple files.

Here is the template :

Update

You really should only use those solution as quick temporary solution. As said on the comments for optimal result you had better run it locally, nowadays you can get a webserver like express or else running in sec.

Rather than "trick" Stack Overflow into allowing posting of these links, let's actually include some helpful code:

function test1() { } function test2() { } var cycleResults = document.getElementById('cycleResults'); var result = document.getElementById('result'); var btn = document.getElementById('btn'); // BENCHMARK ==================== btn.onclick = function runTests() { btn.setAttribute('disable', true); cycleResults.innerHTML = ''; result.textContent = 'Tests running...'; var suite = new Benchmark.Suite; // add tests suite .add('test1', test1) .add('test2', test2) // add listeners .on('cycle', function(event) { var result = document.createElement('li'); result.textContent = String(event.target); document.getElementById('cycleResults') .appendChild(result); }) .on('complete', function() { result.textContent = 'Fastest is ' + this.filter('fastest').pluck('name'); btn.setAttribute('disable', false); }) // run async .run({ 'async': true }); };
<script src=""></script> <ul id='cycleResults'> </ul> <div> </div> <br> <button> Run Tests </button>
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There is also which allows you to create and run javascript benchmarks

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I have incidentally come to know .

It clearly reminds of good ol' jsperf.

You can save your benchmark, share them and they keep track of per-browser performance.

Here is one I just made up: For loop benchmark

(As a side note, you can only save a benchmark if you have a github account.)

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Even though jsperf is online, if you still want to look at alternatives, I found to be quite useful and well designed.

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