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 5291 reference ratings
4.7/5.0 (5291)
  • Market Leader 2025 2025
    Fall 2025Market LeaderContent Marketing Software
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  • Market Leader 2025 2025
    Summer 2025Market LeaderA/B Testing Software
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Featured Testimonials

  • "At AdRoll, we depend on testing to drive customer growth we'll test just about anything. Optimizely is a key lever in our strategy and ensures that we grow the footprint of our business as quickly as possible."

    Peter ClarkHead of Growth

  • "When you're giving your customers the journey they're intending, they're more likely to engage. And more importantly, they're less likely to get annoyed by your emails. Now, we look at segmentation in a far more comprehensive way due to the technology and data capabilities that [Data Platform] provides."

    Laur FiatoaSenior Growth Marketing Manager

  • "The main advantage for Santander is that it is a lot easier to develop and manage online banking internally, and in less time."

    Peter Leijon SpjuthManager of Digital Channels
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Featured Case Studies

  • Upworthy Tests Recommended Content Module

    Peter KoechleyCo-Founder, Upworthy

  • Diligent Steps into the Agentic AI Future with Optimizely Opal

    John HabibDirector, Content Strategy

  • Earnest Experiments with Onboarding Funnel to Grow Short-Term Conversions and Build Long-Term Relationships

    Craig BattinHead of Growth Marketing
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Featured Customer Videos

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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.

FeaturedCustomers has 1,878,392+ validated customer references including reviews, case studies, success stories, customer stories, testimonials and customer videos that will help you make better software purchasing decisions.