Optimizely

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Read 290 Optimizely reviews and testimonials from customers, explore 394 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
  • 394 Case Studies View
  • 203 Customer Videos View
Customer Rating Review Score based on 6076 reference ratings
4.7/5.0 (6076)
  • Fall 2026 Market Leader Content Marketing Software
  • Summer 2026 Market Leader A/B Testing Software

More from Optimizely

Featured Testimonials

  • “It would've been easy to say, ‘Let's just make the thumbnails dark so people have to click on them to see what the video is about.’ But we don't want …

  • "Full Stack has opened up new doors for our business. Any time we deploy something new in our product, we do it as a test to measure conversion and revenue …

  • "Not only do our websites play a crucial role in driving visitors to our stores, they’re also excellent sources of customer insights. Insights from which our entire organisation can benefit."

Featured Case Studies

  • Elite Hotels of Sweden boosts guest experiences across 39 hotels with Optimizely …

  • Move, Inc. launches 1 new experiment every 2 weeks with Optimizely

  • LexMod boosts site performance and mobile experience with 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 394 businesses that use Optimizely.

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