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 4900 reference ratings
4.7/5.0 (4900)
  • Market Leader 2025 2025
    Summer 2025Market LeaderA/B Testing Software
  • Market Leader 2024 2024
    Fall 2024Market LeaderContent Marketing Software

Featured Testimonials

  • "Our customers were comparing us to the big box stores, expecting a high level of functionality for the ordering and delivery of our products and services. We needed to partner with an eCommerce provider that we trusted and was technologically savvy."

  • "Like so many modern organizations, our success hinges on being able to maximize visibility, enable faster turnaround times, and minimize duplication and waste."

  • "The new site is responsive, mobile first and fit for purpose. We’ve been able to serve tens of thousands of hits on the website without a problem, which is where Optimizely Content Cloud has really helped. It’s been able to scale to cope with demand when it’s needed, on days which aren’t typical."

Featured Case Studies

  • UniSA students were looking to engage in different ways

  • Grubhub Scales customer-centric product strategy, connecting diners with restaurants

  • The Student Hotel brings hybrid co-living and working mobile

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.