Lee Willis

This plugin lets you set up two different templates with differences that you think might increase conversions, serve these different templates up to users, and track their activity using custom segments in Google Analytics.
Alternatively you can use it to “choose” a particular theme by setting a URL parameter so you can experiment using different themes yourself (Particularly useful when developing your “split” themes!

SES Theme Split Test

Split test your wordpress theme, and track test using Google Analytics user defined values.

Antonio Villegas

Nelio Software

David Aguilera

Test, learn, and grow with data-driven insights
<a href="https://neliosoftware.com/testing/?utm_source=wordpressorg&utm_medium=referral&utm_campaign=nelio-ab-testing" rel="nofollow ugc">Nelio A/B Testing</a> is an extremely powerful and easy-to-use A/B Testing and Conversion Optimization plugin for WordPress. Create, manage, and analyze tests directly from your WordPress dashboard — no external tools, coding, or data exports required.
With Nelio A/B Testing, you can test pages, posts, headlines, menus, widgets, WooCommerce products, themes, CSS, synced patterns, and more. Understand how visitors behave with heatmaps, clickmaps, and scrollmaps, and make data-driven decisions that actually improve conversions.
<blockquote>
“Nelio A/B Testing has been a game changer for our web strategy. It empowered us to make decisions based on data, not instinct. The simplicity, affordability, and impact have been exceptional.” 
 Quentin Molinié, Co-founder of <a href="https://neliosoftware.com/blog/guardian-recovery-and-nelio-ab-testing-a-case-study/?utm_source=wordpressorg&utm_medium=referral&utm_campaign=nelio-ab-testing" rel="nofollow ugc">Darwin Nutrition</a> | <a href="https://neliosoftware.com/blog/tag/interviews/?utm_source=wordpressorg&utm_medium=referral&utm_campaign=nelio-ab-testing" rel="nofollow ugc">Case Studies</a>
</blockquote>
<h3>🚀 Why Choose Nelio A/B Testing?</h3>
<ul>
<li>Built for WordPress. Unlike external SaaS tools, Nelio integrates natively into your dashboard and page builder for a seamless experience and instant setup.</li>
<li>Data-Driven Decisions, Simplified. Design tests, view results, and apply winners automatically, all without writing a single line of code (if you don’t want to).</li>
<li>Privacy & Performance First. No personal data stored and fully compatible with caching and optimization plugins.</li>
<li>We Listen and Evolve. Your feedback directly shapes our roadmap. If you need a feature, tell us, and we’ll do our best to make it happen.</li>
</ul>
<h3>💡 Features at a Glance</h3>
<ol>
<li>A/B and Multivariate Testing. Test completely different layouts or subtle design tweaks to find out what converts best.</li>
<li>Heatmaps & Scrollmaps. Visualize how users interact with your content.</li>
<li>Automatic Winner Deployment. Let Nelio automatically apply the best-performing variation for you.</li>
<li>WooCommerce Ready. Test product titles, images, prices, and layouts to maximize sales.</li>
<li>AI-Assisted Test Suggestions. Get personalized test ideas to improve engagement and conversion.</li>
<li>Segmentation & Targeting. Test experiences by device, referrer, location, or behavior.</li>
<li>GDPR & Privacy-Friendly. No personal data stored, fully compliant with EU regulations.</li>
<li>Performance-Aware. Optimized for caching and minimal page load impact.</li>
<li>Detailed Reports with Comprehensive Analytics. Conversion rates, confidence levels, and visitor stats.</li>
<li>Compatible with Page Builders. Works with Gutenberg, Elementor, and more.</li>
<li>Multisite & Localization Support. Fully compatible with multisite networks and translated into multiple languages.</li>
<li>Actively Maintained & Supported. Frequent updates, detailed documentation, and responsive support.</li>
</ol>
<h3>🧪 What You Can Test</h3>
<ul>
<li>Pages and Posts</li>
<li>Headlines</li>
<li>Content Templates</li>
<li>WordPress Synced Patterns</li>
<li>Menus and Widgets</li>
<li>WooCommerce Products and Pricing</li>
<li>Custom JavaScript and CSS Snippets</li>
<li>Entire Site Designs</li>
<li>Custom Post Types</li>
<li>Popups</li>
<li>PHP Hooks (for devs)</li>
</ul>
<h3>🔒 GDPR-Compliant & Privacy-Friendly</h3>
We take privacy seriously. Nelio A/B Testing does not store personal data and complies with the GDPR and the CCPA. You can use it confidently in any region.
<h3>💰 Free vs Premium</h3>
Start with the free version (supports up to <a href="https://neliosoftware.com/testing/help/what-is-a-tested-page-view/?utm_source=wordpressorg&utm_medium=referral&utm_campaign=nelio-ab-testing" rel="nofollow ugc">500 tested page views per month</a>) to run basic tests and heatmaps on smaller sites. <a href="https://neliosoftware.com/testing/pricing/?utm_source=wordpressorg&utm_medium=referral&utm_campaign=nelio-ab-testing" rel="nofollow ugc">Upgrade to a premium plan</a> to unlock advanced features, higher traffic limits, and priority support.
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Nelio A/B Testing — The native WordPress solution for A/B testing, heatmaps, and conversion optimization.

Nelio A/B Testing – AB Tests and Heatmaps for Better Conversion Optimization


Easy to set up, super quick and constructive support!


Great A/B testing tool


I recently ran into two issues—one with billing and another technical challenge—and was blown away by how quickly and effectively both were resolved. The team demonstrated exceptional responsiveness and professionalism, turning a potentially frustrating experience into a seamless one. Their commitment to customer satisfaction truly sets them apart, and I wholeheartedly recommend their A/B testing services to anyone in need of reliable support and innovative solutions.


Amazing support

A/B Testing, conversion rate optimization, and beautiful Heatmaps with AI Assistance.

SES Theme Split Test vs Nelio A/B Testing – AB Tests and Heatmaps for Better Conversion Optimization