Optimizely

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Read 290 Optimizely reviews and testimonials from customers, explore 363 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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  • 290TestimonialsView
  • 363Case StudiesView
  • 203Customer VideosView
Customer Rating Review Scorebased on 4976 reference ratings
4.7/5.0 (4976)
  • Market Leader 2025 2025
    Summer 2025Market LeaderA/B Testing Software
  • Market Leader 2024 2024
    Fall 2024Market LeaderContent Marketing Software

Featured Testimonials

  • "Many teams come to us with ideas that either are something they’re stuck on, or a small change they want to make. We take a step back and look at the big picture, help them to unpack the problem and design a meaningful experiment."

  • “Today, with the power of technology we are able to rapidly respond and meet the needs of the education landscape online and in any one of our 20 markets. We are not held back by laggy distribution and releasing yearly volumes of educational content. We are able to make use of purposeful software to bridge the gap between cutting-edge skills and the opportunities that are available around the world to our students.”

  • “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 to trick people into clicking, even though the data said this may perform a little bit better. That’s not what we’re after as a brand.”

Featured Case Studies

  • Netafim - Customer Case Study

  • RSPB sees 43% increase in overall page visits

  • Marmon Link moves beyond a website to transformative experiences with Optimizely B2B Commerce Cloud

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 363 businesses that use Optimizely.

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