Free CRO Tools
A/B Testing & CRO Tools
Audit key pages, plan experiments, and measure results with these free CRO tools. No sign-up required.
CRO Audit Checklist
Score your landing page, homepage, or funnel against conversion best practices for value proposition, CTAs, trust, speed, forms, copy, and UX.
Try it free →💡A/B Test Ideas Generator
Browse 50+ curated test ideas by page type. Filter by impact and difficulty to build a stronger experimentation roadmap.
Try it free →📐Sample Size Calculator
Estimate how many visitors each variant needs before you can trust the result. Set your baseline conversion rate, lift target, and confidence level.
Try it free →📊Statistical Significance Calculator
Enter your control and variant numbers to get conversion rates, relative lift, p-value, confidence level, and a clear winner/loser call.
Try it free →💰A/B Testing ROI Calculator
See how much revenue you're leaving on the table. Calculate the annual impact of conversion rate improvements — perfect for agency proposals.
Try it free →📈Conversion Rate Calculator
Calculate your conversion rate instantly and see how it compares to industry benchmarks for ecommerce, SaaS, lead gen, and media.
Try it free →⏱️Test Duration Calculator
Find out how long your A/B test needs to run. Enter your traffic, conversion rate, and desired lift to get an estimated timeline.
Try it free →Ready to run real experiments?
These tools help you plan. PageDuel helps you execute with a visual editor, real-time stats, and results you can trust.
14-day free trial · No credit card required · From $9/mo