Unbounce is the most powerful standalone landing page builder available.

wBounce improves bounce rate to boost conversions and sales. The free alternative to Bounce Exchange for WordPress.

Split (A/B) test multiple titles for a post and discover which gets more page views. Great way to increase click through rates.

Easiest way to create split tests on your WordPress sites, right from the content editor!

Easily perform A/B testing from within WordPress itself.

This plugin connects with Freshmarketer, a simple and powerful tool to optimize your Wordpress site using A/B testing, heatmaps and other optimization …

WordPress plugin that provides A/B audio comparison and synchronization.

This plugin enables you to easily add Google Content Experiments control code and/or event tracking into your WordPress pages and posts.

Time synchronized A/B comparison for audio files (mp3, wav...).

Convert anonymous visitors into subscribers and customers with 40Nuggets' intelligent screen overlays

Landing Lion is the easiest and fastest landing page builder to create landing pages for your brand.

Easily A/B test your Formidable Pro created forms.

WordPress A/B testing in two shortcodes.

A simple plugin that allows A/B Testing for Gravity Forms

WordPress headline testing with Optimizely

Easily add the Optimizely script on your website.

A simple AB Testing plugin.

AB Tasty enables you to set up A/B tests and multivariate easily to optimize your conversion rate.

Headline Split Tester allows you to have two competing headlines for blog posts. They are randomly shown until one headline wins.

Personyze is an advanced Web analytics and personalization tool.