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 6004 reference ratings
4.7/5.0 (6004)
  • Fall 2026 Market Leader Content Marketing Software
  • Summer 2026 Market Leader A/B Testing Software

More from Optimizely

Featured Testimonials

  • "We knew we needed a platform that would be able to support us in both the short and long-term. Specifically, we needed a solution that would allow us to drive …

  • "Ensuring that sales teams have solid leads to follow is fundamental in the B2B marketplace. We wanted a way to deliver better leads without burdening our busy internal IT team."

  • "Most importantly, as with any digital strategy, we wanted to find speed. We wanted to find the partners, and within our own team, the ability to do this not just …

Featured Case Studies

  • Detpak - Customer Case Study

  • How Etac consolidated into one global site

  • Waukesha County ‘liberate’ their digital services, migrating from Ektron to Optimizely

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.