Optimizely

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Read 290 Optimizely reviews and testimonials from customers, explore 387 case studies and customer success stories, and watch 203 customer videos to see why companies chose Optimizely as their A/B Testing Software

Optimizely is the world’s leading experience optimization platform, providing website and mobile A/B testing and personalization for the world’s leading brands. The platform’s ease of use and speed of deployment empowers organizations to conceive and run experiments that help them make better data-inspired decisions. Optimizely meets the diverse needs of thousands of customers worldwide looking to deliver connected experiences to their audiences across channels. To date, those customers have created and delivered more than 30 billion optimized visitor experiences.

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  • 290 Testimonials View
  • 387 Case Studies View
  • 203 Customer Videos View
Customer Rating Review Score based on 5842 reference ratings
4.7/5.0 (5842)
  • Summer 2026 Market Leader A/B Testing Software
  • Fall 2025 Market Leader Content Marketing Software

More from Optimizely

Featured Testimonials

  • "I think the beauty of these campaigns is that we've been able to build out and replicate these models throughout our various campaigns. It's been eye-opening to continue to watch …

  • "It has been a game-changer for us centralising our architecture around the Optimizely CMS platform. It helped the organisation to focus on work that really matters rather than managing complex …

  • "As we tested and optimized the homepage, we’d start to see similar results, to the point where we're able to templatize it. We can update content but leave the wire-frames …

Featured Case Studies

  • How Absolut launches new websites in minutes Watch the story

  • Drive Time CTA variation drives 20% jump in click conversions

  • Enverus unites 30+ acquisitions and cuts campaign execution to 18 days with …

Featured Customer Videos

Additional Optimizely Information & Resources

Read Optimizely Reviews, Testimonials & Customer References from 290 real Optimizely customers.

Browse Optimizely Case Studies, Customer Success Stories, & Customer References from 387 businesses that use Optimizely.

Watch Optimizely Customer Videos to learn why 203 businesses chose Optimizely.