10 Best CRO Tools to Boost Website Conversions

The 10 best CRO tools are Omniconvert Explore, VWO, Optimizely, Crazy Egg, Hotjar, Mouseflow, Microsoft Clarity, Fullstory, Heap and Woopra. They do three different jobs. Experimentation platforms test changes and prove which version converts better. Behavior analytics tools show where visitors click, scroll and get stuck. Product and journey analytics tools track events and funnels across the whole customer lifecycle.

This guide groups the tools by that job, gives each one what it does, who it suits and its pricing model, and ends with a method for choosing. Each tool was re-checked on its vendor site: two have changed owner since the first version of this article, and prices are shown only where the vendor publishes them.

What are CRO tools and why do they matter?

Conversion Rate Optimization (CRO) tools help businesses improve website performance, user experience and conversion rates. They identify friction points in the user journey, test variations of page elements, and turn behavior data into decisions that marketers, UX designers and business owners can act on.

The case for them is simple. Traffic costs money every month. A conversion improvement keeps paying, because every visitor who arrives after the change benefits from it. Features such as A/B testing, heatmaps, session recordings and form analytics show what works and what does not, which is how stores, SaaS platforms and lead generation sites grow sales without buying more traffic.

This page covers the core platforms. For narrower comparisons, see our guides to heatmap tools, session replay tools, CRO audit tools, analytics tools and free CRO tools. For courses and books, see CRO resources.

How we chose these CRO tools

Each tool was scored against the same six criteria:

• Core features: A/B testing, heatmaps, session recordings and user behavior tracking.
• Ease of use: how easily marketers, UX designers and business owners can use it without a developer.
• Pricing and scalability: whether plans fit businesses of different sizes.
• Integrations: connections to analytics, CRM and eCommerce platforms such as Google Analytics, HubSpot and Shopify.
• User reviews: feedback on G2, Capterra and Trustpilot, plus discussion in CRO communities and LinkedIn groups.
• Real-world results: published case studies showing how customers used the tool.

Review ratings change constantly, so we link to each tool's G2 page rather than quote a score that will be out of date. Customer results are quoted only where we could confirm them on the vendor's own case study.

The 10 best CRO tools compared

Prices were taken from each vendor's pricing page and change often. Always confirm the current plan and billing terms on the vendor site.

Experimentation platforms: A/B and multivariate testing

1. Omniconvert Explore

Omniconvert Explore is a CRO platform built for eCommerce businesses, digital marketers and optimization teams. Many CRO tools focus only on A/B testing; Explore combines experimentation, customer research and real-time personalization in a single platform, so teams do not need a separate script for each job.

Its main capabilities:

• A/B, multivariate and split URL testing for landing pages, product pages and checkout flows, from CTA buttons and headlines to entire layouts.
• On-site surveys that collect feedback from real users, so survey insight and test data sit side by side.
• Overlays and exit-intent pop-ups triggered by exit intent, time on page or scroll depth, to capture leads and re-engage visitors before they leave.
• Web personalization that changes content for different segments, such as homepage banners by preference or promotions by location.
• Advanced segmentation with 40+ targeting parameters, including geolocation, browsing behavior, device type, UTM parameters and past interactions.

Best for: eCommerce teams that want testing, surveys and personalization in one tool, especially those who want to understand why visitors hesitate as well as what converts.

Pricing: plans are based on tested views per month. A/B testing is free for up to 50,000 tested visitors; larger plans and an Enterprise option with managed CRO services scale with traffic.

Proof: During the launch of the Galaxy S6, Samsung used an Explore exit personalization to keep visitors engaged. In two weeks it produced 26% incremental revenue, a 2% conversion rate for users exposed to the personalization, a 7.6% click-through rate, and 60% of visitors gave up their exit intent (Omniconvert case studies). Read user reviews on G2.

2. VWO (now Wingify)

VWO (Visual Website Optimizer) is an experimentation platform for A/B testing, personalization, heatmaps and user behavior analysis. In 2026 VWO merged with AB Tasty, and the combined business now operates under the Wingify brand. The testing product itself continues.

• A/B, multivariate and split URL testing for web pages, with mobile app and server-side testing for backend logic such as pricing and recommendation engines.
• Heatmaps and session recordings that show click and scroll patterns.
• Personalization based on behavior and audience attributes.
• Form and funnel analytics that locate drop-off points.

Best for: growing and mid-size teams that want to start with web testing and expand into behavior analytics, mobile and server-side experiments.

Pricing: tiered Growth, Pro and Enterprise plans with a 30-day free trial. Check the vendor site for current prices. Read user reviews on G2.

3. Optimizely

Optimizely is a digital experimentation platform for enterprise businesses, marketers and product teams. Its Web Experimentation product runs A/B, multivariate and split URL tests on web experiences without heavy developer involvement.

• Web experimentation for landing pages, headlines, button placement and product recommendations.
• Feature experimentation and server-side testing for backend changes such as pricing, checkout logic and recommendation engines.
• Personalization by behavior, audience and browsing history.
• Automated traffic allocation that shifts traffic toward better-performing variations.
• Collaborative workflows with experiment scheduling and audience management for large organizations.

Best for: mid-to-large enterprises that run many experiments across several digital properties and have a dedicated optimization budget.

Pricing: custom quote, based on traffic and the products you need. It is among the more expensive options. Read user reviews on G2.

Behavior analytics: heatmaps, recordings and feedback

4. Crazy Egg

Crazy Egg is a website analytics and CRO tool that gives visual insight into user behavior through heatmaps, scroll maps, session recordings and A/B testing. It is designed for marketers, UX designers and business owners who want to see where users click, scroll and drop off without a complex setup.

Best for: small and mid-size teams that want fast visual insight and simple A/B tests in the same tool.

Pricing: the pricing page lists Starter at $29, Plus at $99, Pro at $249 and Enterprise at $599 per month, priced by tracked pageviews, with a 30-day free trial. Confirm billing terms on the vendor site.

Proof: real estate developer Miller and Smith used heatmaps and session recordings to build a usability plan, with a 7.5% decrease in bounce rate and an 8.5% increase in goal conversion. Read user reviews on G2.

5. Hotjar (now part of Contentsquare)

Hotjar is a behavior analytics tool that combines heatmaps, session recordings, surveys and feedback polls. Hotjar is now part of Contentsquare: hotjar.com and its pricing page redirect to Contentsquare, where the same heatmap, recording and survey tools are sold.

Best for: marketing, product and UX teams that want qualitative insight, behavior plus direct user feedback, with an easy setup.

Pricing: Contentsquare publishes a free plan and paid tiers on its pricing page. Surveys may be priced separately, so check the vendor site. Read user reviews on G2.

6. Mouseflow

Mouseflow is a behavior analytics tool with heatmaps, session recordings, form analytics and funnel tracking. It shows where visitors click, how they navigate and why they abandon key pages, and it flags friction automatically.

Best for: teams diagnosing checkout and form abandonment, where field-level form analytics and funnels matter most.

Pricing: the pricing page lists a free plan, paid plans from €25 per month (Essential, Advanced, Premium) and a custom Enterprise plan. Prices are in euros and vary with billing period.

Proof: Danish skincare brand Ecooking used heatmaps and recordings to find friction and feed A/B tests, and grew conversions by over 10%. Read user reviews on G2.

7. Microsoft Clarity

Microsoft Clarity is a free behavior analytics tool with session recordings, heatmaps and AI-generated insights. It flags frustration signals such as rage clicks and dead clicks, and it integrates with Google Analytics so you can combine quantitative and qualitative data.

Best for: any site, from a small blog to a large store, that needs heatmaps and recordings without a budget. It is the easiest first behavior tool to install.

Pricing: free, with no paid tier.

Proof: web scraping API provider Scrape.do used Clarity to simplify its sign-up flow and reported a 28% increase in trial sign-ups. Read user reviews on G2.

Product and journey analytics

8. Fullstory

Fullstory is a digital experience analytics platform for websites and mobile apps. It combines session replay with event-based product analytics that capture interactions automatically, without manual event tagging.

• Session replay that shows clicks, scrolling and form interactions, and flags frustration signals such as rage clicks, dead clicks and errors.
• Product analytics for funnels, drop-off points and engagement trends.
• Mobile app analytics and data export to external analytics and BI tools.

Best for: mid-size and large businesses with analytics or UX teams that need to diagnose experience issues across web and mobile. It does not replace an A/B testing tool.

Pricing: a free plan (FullstoryFree, 30,000 monthly sessions) and paid plans by quote. See the plans page. Read user reviews on G2.

9. Heap (by Contentsquare)

Heap is a product analytics platform, now part of Contentsquare, that automatically captures every user interaction on a website or app. Teams can define events and funnels after the fact instead of asking developers to tag them in advance.

• Autocapture of clicks, page views and form interactions.
• Funnels and journeys that show conversion bottlenecks.
• AI-assisted analysis that surfaces trends and anomalies.
• Data warehouse connections for BI tools on higher plans.

Best for: product managers, SaaS teams and marketers who need behavioral data without an event-tracking project. Expect a learning curve for complex reports.

Pricing: the pricing page lists a Free plan (up to 10,000 monthly sessions), Growth, and Pro and Premier plans by quote.

Proof: Freshworks used Heap to make a feature more discoverable and increased adoption of its templates by 20%. Read user reviews on G2.

10. Woopra

Woopra is a customer journey analytics platform that tracks each person across touchpoints, from first visit to conversion and beyond. Woopra was acquired by Appier in 2022, and on G2 it is listed as Appier AIRIS (formerly Woopra); the Woopra product and website remain live.

• End-to-end journey tracking at the level of individual people and accounts.
• Funnel, retention and cohort reports in real time.
• Automations and integrations that pass behavioral data to marketing, sales and support tools.

Best for: marketing, product and sales teams that want one view of the customer journey across channels, and have the event volume to justify it.

Pricing: the pricing page lists Pro from $999 per month (from 5 million events) and a custom Enterprise plan, with a 30-day Pro trial. Read user reviews on G2.

How to choose the right CRO tool

1. Define your optimization goal

   If the goal is to lift conversion rates through testing, you need A/B and multivariate testing. If the focus is user experience, you need heatmaps and session recordings. If long-term engagement and retention matter most, you need journey and funnel tracking.
2. Identify the type of data you need

   Quantitative data (conversion rates, click-through rates, test results) tells you what happens and validates changes with statistical significance. Qualitative data (heatmaps, recordings, surveys) tells you why users behave as they do and reveals friction that numbers alone miss.
3. Match the tool to your size and budget

   Small businesses can start with free tools and free plans. Mid-size companies usually need a structured testing platform. Large enterprises with complex flows need advanced segmentation, server-side testing and broad integrations. Most vendors price by traffic, so compare against your monthly sessions.
4. Check integrations

   The tool should connect to your analytics platform, CRM, tag manager and eCommerce platform, so behavior data can be combined with revenue and customer data.
5. Confirm ease of use and scalability

   Some platforms have visual, no-code editors that marketing and UX teams can use alone. Others need developers for tracking and advanced tests. If you plan to scale, check traffic limits, segmentation depth and how many tests can run at once.
6. Look at AI and automation

   AI features can detect patterns and anomalies faster than manual analysis, summarize recordings and shift traffic toward winning variations. Treat them as a speed-up, not a substitute for a clear hypothesis and a properly sized test.

The best CRO tool for each business need

A common and cost-effective stack is Google Analytics 4 for the numbers, Microsoft Clarity or Hotjar for the diagnosis, and an experimentation platform to prove the fix. If you want one platform that runs A/B tests, personalization, overlays and on-site surveys, Omniconvert Explore covers all of them. To turn test winners into long-term customer value, Nexus by Omniconvert adds RFM segmentation and customer lifetime value analysis.

Frequently Asked Questions