Unit.js in the browser

Although originally designed for use with Node.js, it can also be used directly in the browser.

Download the unit.js file. And then use a script tag:

<script src="unit.js"></script>

The global variable unitjs becomes available after the above script tag.

If you are not already using a runner, I recommend Mocha which is easy to use and provides essential features. Mocha works on Node.js and browser.