Optimize your WordPress site based on real data, not opinions.
Nelio A/B Testing 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.
“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 Darwin Nutrition | Case Studies
8.1.6 (October 16, 2025)
- Add contextual help to engagement conversion action to explain how it works.
- Fix scope detection on URL heatmap tests to prevent them from running everywhere.
- Fix test duration label in results screen.
8.1.5 (October 13, 2025)
- Fix extra quota purchase.
- Fix event tracking on Google Analytics 4.
- Use
home_url() in regular page tests when testing home page.
8.1.4 (October 8, 2025)
- Close “Add Action” and “Add Rule” dropdown menus after clicking on an option.
- Fix bug preventing the “Tested Visitors” setting from being saved correctly.
8.1.3 (October 7, 2025)
- Fix issue with using control URL in page, post, and custom post type tests.
- Disable “Use control URL in variants” when disabling “Test against already existing content.”
8.1.2 (October 6, 2025)
- Add new setting to page and URL tests to use control URL in alternative pages.
- Enable syntax highlighting in PHP editors.
- Fix tracking of Formidable form submissions.
- Prevent redirection when loading control version.
- Keep original start date when restarting test.
- Remove
false as a possible requested alternative and replace it with 0 (i.e. control).
8.1.1 (September 10, 2025)
- Show plugin version number in Dashboard widget.
8.1.0 (September 8, 2025)
- Add global JS variable
nabIsLoading to improve GA tracking.
- Add new conversion action to track engagement.
- Add new filter to allow sending multiple conversions per regular page view.
- Add option to delete only staging data.
- Add segmentation rule to test new/returning visitors only.
- Add support for FormCraft forms.
- Add support for JetFormBuilder forms.
- Add support for MW WP Form forms.
- Add support for MetForm forms.
- Add support for SureForms forms.
- Change resolution of preview thumbnails.
- Ensure content overlay is inserted whenever the tracking script is added.
- Fix compatibility issue with WeGlot and URL tests.
- Fix compatibility issue with Landing Pages of Elementor.
- Fix filter name
nab_alternative_loading_overlay_color to customize the overlay color.
- Fix page/post selector in tests when selected page/post does no longer exist.
- Fix retrieval of Gravity Forms.
- Fix template selector in tests when selected template does no longer exist.
- Fix tracking of Formidable Form submissions.
- Fix warning logs.
- Improve UI layout for conversion action creation.
- Improve UI layout for segmentation rule creation.
- Try to add required capabilities for session recordings after activating the plugin.
- Tweak language segmentation rule to match any language defined in the browser and not only the first one.
- Tweak public script to wait for geo segmentation rules only if necessary.
🌍 Translations
Available in English, Spanish, and Catalan.
Want to help translate Nelio A/B Testing into your language?
Join the translation team!