Elementor
Elementor's widget-based editor makes it easy to duplicate a section and tweak a single version - exactly what A/B testing needs.
Page builders
A/B testing for any WordPress builder
ImproveAB matches variants with a CSS class, so the same free plugin works in every editor. Pick your builder for a short setup guide - the only step that differs is where the class field lives.
Builders
Bricks
Bricks is built for performance and clean markup, and ImproveAB keeps that promise - no heavy script, no flicker, fully cache-friendly.
Gutenberg
With the native WordPress block editor there's nothing extra to install - every block already has a field for a CSS class.
Etch
Etch is class-first by design, so adding a variant class feels completely native - and this whole site ships Etch-ready to prove the point.
Divi
Divi's visual builder lets you clone a module in a click; add a class to each copy and you have an A/B test.
Beaver Builder
Beaver Builder's stable, no-nonsense editor pairs well with a testing tool that stays out of the way and on your own server.
Oxygen
Oxygen gives you full control of markup and classes, so dropping in a variant class is second nature.
Breakdance
Breakdance combines speed with a flexible editor - add a class to each variant and let ImproveAB handle the split.
Kadence
Kadence Blocks extend the block editor while keeping things light, and every block still exposes a CSS class field.
GeneratePress
GeneratePress and GenerateBlocks are famously fast and lightweight - a perfect match for a testing tool with no external scripts.
Astra
Astra works with the block editor and most page builders, so you can test however you build - the class field is always there.
WPBakery
WPBakery Page Builder powers a huge share of established WordPress themes, and ImproveAB works with it out of the box - every element has an Extra class name field, which is all a test needs.
Don't see yours? Any builder or classic theme with a CSS-class field works exactly the same way.
Why one plugin works everywhere
Most WordPress testing tools either replace your editor or only work inside one specific builder. ImproveAB takes a different route: you create a test in your dashboard, the plugin generates a CSS class per variant, and you add that class to the matching element in whatever editor you already use. Every builder above - and any classic theme - has a field for a CSS class, so nothing about your workflow changes.
Everything else is builder-independent: variants are assigned in the visitor's browser (cookieless and cache-friendly), the tested element stays hidden until the chosen variant is applied so the original never flashes, and results are recorded first-party in your own database. If a builder isn't listed here, it almost certainly still works - the class field is the only requirement.
Test with the builder you already use
Free, cookieless, no traffic limits - and no lock-in to any editor.