19 of the Best A/B Testing Tools for 2026
A/B testing tools help teams compare different versions of a webpage, product experience, feature, or campaign and measure which version performs better against a defined goal.
In 2026, that covers a much broader range of software than traditional website split testing. Some tools are built for marketers using visual editors, while others handle server-side experiments, feature flags, mobile apps, warehouse-native analysis, personalization, or full-stack product experimentation.