Now that you know what to look for in a CRO tool, here are some of the most popular and reputable options to consider. Google Optimize is a free CRO tool from Google that allows you to run A/B tests, multivariate tests, and personalization experiments on your website, and it integrates with Google Analytics, Google Ads, and Google Tag Manager. Optimizely is a premium CRO tool that offers a comprehensive suite of features, such as A/B testing, multivariate testing, personalization, analytics, and more, and it integrates with various platforms and tools, such as WordPress, Shopify, Salesforce, and HubSpot. Hotjar is a freemium CRO tool that focuses on user feedback and behavior analysis, and it offers features such as heatmaps, session recordings, surveys, and polls, and it integrates with various platforms and tools, such as WordPress, Shopify, Mailchimp, and Zapier. VWO is a premium CRO tool that combines A/B testing, analytics, personalization, and user feedback, and it offers features such as heatmaps, session recordings, surveys, and more, and it integrates with various platforms and tools, such as WordPress, Shopify, Magento, and Google Analytics.