We ran 10 CRO tools on real ecommerce stores.

Microsoft Clarity is the most generous free tool in CRO: unlimited heatmaps and session recordings with no traffic caps, plus automatic detection of rage clicks, dead clicks, and excessive scrolling that flag frustrated visitors.

It is genuinely free because Microsoft uses it to improve its own products, with no paid tier to upsell you. The trade-off is depth — it diagnoses rather than tests or fixes — but there is no reason not to run it alongside an action tool.

Crazy Egg is one of the original heatmap tools and still a solid budget pick. Its “confetti” report breaks clicks down by traffic source, and it adds a lightweight A/B testing feature on top of the core heatmaps and recordings.

At $29/month it is approachable for small stores, though it lacks the experimentation depth of VWO or Convert. Think of it as heatmaps-plus rather than a full CRO platform.

Convert.com is the experimentation tool of choice for privacy-conscious teams. It is built around GDPR compliance and explicitly does not resell visitor data, while still delivering fast, reliable A/B and multivariate testing with a clean visual editor.

It earns the highest user rating in our roundup (4.7/5) on the strength of its support and accuracy. It focuses on testing, so most teams pair it with a behavior tool like Clarity — or skip the testing overhead entirely with autonomous tools like Ryze AI.

Unbounce is a no-code landing-page builder with a CRO brain. Its standout feature, Smart Traffic, uses AI to route each visitor to the page variant most likely to convert them — effectively automating the A/B decision in real time.

It is ideal for paid-ad and campaign landing pages, but it optimizes those standalone pages rather than your product and checkout flow. For full-store CRO you will want it alongside a tool that covers the rest of the funnel.

Dynamic Yield (owned by Mastercard) is an enterprise personalization engine: real-time 1:1 product recommendations, dynamic content, and triggered experiences across web, app, and email, all driven by a unified customer profile.

It is powerful and correspondingly heavy — custom pricing, a real implementation project, and a team to run it. It is overkill for most stores, but for large retailers, personalization at this depth can move revenue meaningfully. Smaller brands get most of the upside from autonomous optimization without the lift.