CRO is much easier with the right tools. Some top picks Google Analytics 4, Fibr: Both track visitor behavior and conversion paths. Hotjar or Crazy Egg: For heatmaps and session recordings to see where users click and scroll. Fibr: For comprehensive, AI-powered A/B tests and multivariate tests. Klaviyo: Helps with personalized email and SMS marketing. Shopify apps (like ReConvert or Privy): Optimize checkout and upsells. A combo of analytics, testing, and personalization tools will set you up for success.