The best conversion rate optimization tools cover four jobs. Google Analytics 4 measures conversions. Microsoft Clarity or Hotjar shows how visitors behave. An A/B testing tool such as Optibase, Wingify or Optimizely proves what works. A personalization tool tailors pages to segments. Small teams can often cover testing and behavior data with one or two tools.
Last updated November 3, 2026. We checked every price on the vendor's own pricing page that week.
Most CRO tool lists give you 30 logos and no way to choose. You need one tool to measure, one to watch behavior, one to test, and maybe one to personalize. Below is the conversion rate optimization software we'd shortlist in 2026: 12 tools grouped by job, with checked prices and a note on who should skip each one.
If you're still getting your head around the discipline itself, start with what conversion rate optimization is and come back here when you're ready to pick software.
| Tool | Job | Best for | Free plan | Starting price | No-code |
|---|---|---|---|---|---|
| Google Analytics 4 | Measure | Every site that needs conversion tracking | Yes | Free. Analytics 360 is quote-only | Mostly, events can need setup |
| PostHog | Measure, test | Product and engineering-led SaaS teams | Yes | Free tier, then usage-based | Partly |
| Microsoft Clarity | See behavior | Teams with no budget for heatmaps | Yes, free forever | Free | Yes |
| Hotjar (now Contentsquare) | See behavior | Small teams that want heatmaps, recordings and surveys | Yes, 200k sessions/mo | $39/mo billed yearly | Yes |
| Contentsquare Pro and Enterprise | See behavior | Large teams doing journey and revenue analysis | Free tier is the Hotjar plan | Custom quote | Yes |
| Optibase | Test, personalize | Marketing teams on Webflow or WordPress | Yes, 10k tested users | $79/mo | Yes |
| Wingify (VWO and AB Tasty) | Test, personalize | Mid-market and enterprise testing programs | Free trial | Custom quote | Yes |
| Optimizely | Test | Enterprises with engineering support | No | Custom quote | Partly |
| Convert | Test | Privacy-minded teams that want published prices | Free trial | $299/mo billed yearly | Yes |
| Webflow Optimize | Test, personalize | Webflow sites that want a first-party add-on | No | $299/mo billed yearly for 25,000 page views | Yes |
| Kameleoon | Personalize, test | Enterprises that want AI personalization | 30-day trial | $495/mo, personalization is an add-on | Yes |
| Unbounce | Landing pages, test | Paid campaigns that need fast landing pages | No | $112/mo billed yearly for A/B testing | Yes |
If you want testing, personalization and heatmaps from one tool, you can start free with Optibase and upgrade when your traffic grows.
Pick by job and by traffic. A common mistake is paying for three tools that collect the same session data while nobody runs a single test.
Measure. Know your conversion rate per page, channel and device before you try to improve it. GA4 or PostHog does this.
See behavior. Numbers tell you where people drop off. Heatmaps and session recordings show you why. Clarity, Hotjar and Contentsquare live here.
Test. An A/B test proves a change caused a lift, instead of a good week or a seasonal bump. Most of your CRO budget belongs here once you have the traffic.
Personalize. Show different headlines, offers or proof to different segments. It pays off after you know what works for your average visitor, so it usually comes last.
These bands match our full comparison of 13 testing platforms.
| Monthly visitors | What to run | Rough monthly cost |
|---|---|---|
| Under 50,000 | GA4 and Clarity for data. One affordable no-code testing tool for your highest-traffic pages. | $0 to about $200 |
| 50,000 to 500,000 | GA4, a behavior tool, and a testing tool with personalization. Run tests every month. | A few hundred dollars |
| Over 500,000 | Product analytics, enterprise behavior analytics and an experimentation platform with a dedicated owner. | Custom quotes, often five figures a year |
Under 50,000 visitors a month, enterprise tools are overkill. Tests take longer to reach a result, so focus on your highest-traffic pages. Our sample size calculator tells you how long a test needs before you start it.
We looked at each tool as a marketing or growth lead building a stack would. For every tool we checked:
We make Optibase, which is on this list. We've tried to hold it to the same standard as everything else, including where it falls short.
What it does well. GA4 tracks traffic sources, events, funnels and conversions for free. Almost every other CRO tool on this list connects to it, so it becomes the place where test results and channel data meet.
Where it falls short. The interface is hard for casual users, and custom events often need a developer or Google Tag Manager. It also can't run A/B tests. Google Optimize shut down in September 2023 and GA4 has no built-in way to split traffic.
Pricing, as of November 2026. Free. Analytics 360, the enterprise version, is sold through Google's sales team with no public price.
Best for. Every website. It's the default measurement layer.
Skip it if. You're a product-led SaaS team that already tracks events in PostHog or another product analytics tool and doesn't want two sources of truth.
Optibase connects to GA4 through its Google Analytics 4 integration, so you can read test results next to channel data.
What it does well. PostHog puts product analytics, session replay, feature flags and experiments in one platform. The free tier resets every month and is generous. PostHog's pricing page lists 1M analytics events, 5K session recordings and 1M feature flag requests per month at no cost.
Where it falls short. It's built for developers. PostHog has a no-code toolbar for simple web experiments, but its docs warn it suits small text and layout edits and can break on single-page apps. Most experiments still run through feature flags in code.
Pricing, as of November 2026. Free up to the monthly limits above, then you pay per unit. You can set billing caps per product.
Best for. SaaS teams with engineers who want analytics and in-app experiments in one place.
Skip it if. Your marketing team wants to run website tests without filing tickets.
See how it stacks up in Optibase vs PostHog.
What it does well. Heatmaps, session recordings and a GA4 integration, all free. Microsoft's FAQ says Clarity is free forever with no traffic limits. It's the easiest recommendation on this list.
Where it falls short. No surveys or feedback widgets, and the analysis tools are basic next to Contentsquare. Each heatmap is limited to 100,000 page views.
Pricing, as of November 2026. Free. There is no paid plan.
Best for. Any team that wants behavior data and has no budget for it.
Skip it if. You need on-page surveys or journey analysis across sessions and devices.
What it does well. Hotjar still does heatmaps, recordings and surveys. Hotjar.com now redirects to Contentsquare, and the Hotjar plans are sold as Contentsquare's Experience Analytics Free and Growth tiers. New accounts can no longer be created on Hotjar. You sign up on Contentsquare instead. Surveys are where it beats Clarity.
Where it falls short. The free plan only keeps one month of data and one project. Growth pricing climbs with sessions, and the brand change means older tutorials and plan names no longer match what you'll see at checkout.
Pricing, as of November 2026. Free for up to 200k sessions a month. Growth starts at $39 a month billed yearly, or $49 billed monthly, for 7,000 sessions, with 13 months of data.
Best for. Small and mid-size teams that want heatmaps plus visitor feedback.
Skip it if. You only need heatmaps and recordings. Clarity does that for free.
What it does well. Contentsquare's Pro and Enterprise plans go far past heatmaps. Its pricing page lists cross-session and cross-device journey analysis, conversion and revenue attribution, error analysis and A/B test outcome analysis. For a large ecommerce or enterprise site, it's the stronger tool for understanding complex journeys.
Where it falls short. It's priced and sold for large companies, and setup and training take real time.
Pricing, as of November 2026. Pro and Enterprise are custom quotes. The Free and Growth tiers are the Hotjar plans above.
Best for. Enterprise teams with a dedicated analytics or CRO function.
Skip it if. You have well under a million sessions a month, where its Pro plan starts, or no one to own the tool.
Analytics and heatmaps tell you what might be wrong. A testing tool tells you whether your fix worked. For open-source options and a deeper look at each one, see our guide to the best A/B testing platforms.
What it does well. Optibase runs A/B tests, split URL tests and multivariate tests, plus personalization, analytics, heatmaps and user recordings, in one product. It has native apps for Webflow and WordPress and a script for other builders, so marketers build variants without a developer. More than 3,000 companies use it, and it's rated 4.6 out of 5 on G2.
Where it falls short. Not every feature is on every plan, so check pricing for what each tier includes before you pick one. It's a website testing tool, so it won't replace product analytics or server-side feature flags for an engineering team.
Pricing, as of November 2026. A free plan with 10k tested users. Basic is $79 a month, Business $159 and Professional $319. Billed yearly, that's $790, $1,590 and $3,190. You can start free.
Best for. Marketing teams on Webflow or WordPress who want to test and personalize without engineering help.
Skip it if. Your experiments mostly live inside a logged-in product and need code-level feature flags.
What it does well. Wingify's pricing page now opens with "AB Tasty and VWO have united". The combined platform covers web experimentation, personalization, feature management, behavior analytics and more. The plan grid includes a visual and code editor, multi-armed bandits, multivariate and cross-domain testing on Pro, and SSO, approvals and self-hosting on Enterprise.
Where it falls short. Every plan is quote-only, so you can't budget without a sales call. The merger is recent, and most VWO prices you'll find on other sites are out of date.
Pricing, as of November 2026. Growth, Pro and Enterprise are all custom quotes, priced on monthly active users. There's a free trial.
Best for. Mid-market and enterprise teams that want one vendor for testing, personalization and analytics.
Skip it if. You want a price you can see before talking to sales.
Compare it with Optibase vs VWO and Optibase vs AB Tasty.
What it does well. Optimizely is the established enterprise pick for web and feature experimentation, with server-side testing and a wide product suite around it.
Where it falls short. It assumes a dedicated team with engineers. Marketers working alone will find it heavy, and the contract size rules it out for most small companies.
Pricing, as of November 2026. Optimizely doesn't publish prices. Its plans page asks you to build a custom quote, and the quote depends on traffic and which products you take. Zoho's 2026 roundup estimates about $36,000 a year as a starting point. That's a third-party estimate, not an Optimizely figure.
Best for. Enterprises running experimentation across web and product with engineering support.
Skip it if. You're outside the enterprise and need tests live this month.
What it does well. Convert publishes every price, which is rare in this category. It uses first-party cookies, stores data in Frankfurt, and focuses on privacy. Growth covers A/B and split URL tests. Pro adds multivariate testing, multipage tests, full-stack experiments and multi-armed bandits. Heatmaps and session recordings are included at no extra cost.
Where it falls short. The entry plan is a big step up from budget tools, which matters most on low-traffic sites.
Pricing, as of November 2026. Growth is $299 a month billed yearly, or $399 billed monthly, for 100,000 tested users a month. Pro is $420 a month billed yearly, or $599 monthly. Enterprise is priced on request.
Best for. Teams that care about privacy and want a serious testing tool with a public price.
Skip it if. You have under 50,000 visitors a month and a tight budget.
See Optibase vs Convert.
What it does well. It's Webflow's own testing and personalization add-on, so it lives inside the platform you already use. Webflow's pricing page lists A/B testing, personalization, audience targeting and AI-powered suggestions for A/B tests. The enterprise version adds firmographic targeting and integrations with ABM tools such as Demandbase.
Where it falls short. Pricing scales with page views, and the self-serve plan caps you at five concurrent optimizations. It has no heatmaps or session recordings, and outside Webflow it's a sales conversation.
Pricing, as of November 2026. An optional add-on to a Webflow site plan, from $299 a month billed yearly, or $379 billed monthly, for 25,000 page views, up to 500,000 page views on the self-serve tier. Optimize Enterprise is a custom quote.
Best for. Webflow teams, especially on Webflow Enterprise, that want a first-party tool.
Skip it if. You also run WordPress or another builder, or you want heatmaps in the same tool.
See Optibase vs Webflow Optimize.
What it does well. Kameleoon pairs experimentation with personalization, and its Starter plan builds test variants from a written prompt. The plans page lists sequential testing, holdouts, SRM detection and more than 40 segmentation criteria.
Where it falls short. The starting price is high for small teams, and personalization, feature management and mobile app testing are add-ons to Starter.
Pricing, as of November 2026. A 30-day free trial with up to three experiments. Starter is from $495 a month for up to 10 experiments and 50,000 visitors a month. Enterprise is a custom quote.
Best for. Larger teams that want AI-built tests and personalization from one vendor.
Skip it if. You need a few tests a month on a small site.
What about Mutiny? Older CRO lists name Mutiny for B2B website personalization. In November 2026, Mutiny's own site positions it as an AI sales assistant that drafts follow-ups and personalized sales assets, with plans from free to $50 a month and Enterprise from $40,000 a year. If on-site personalization for target accounts is your goal, check that it still fits before you shortlist it.
What it does well. Unbounce lets you build landing pages and test them in the same tool. Its Experiment plan adds unlimited A/B tests and variants, manual traffic allocation and confidence intervals. The Optimize plan adds Smart Traffic, which routes each visitor to the variant most likely to convert for them.
Where it falls short. It only tests pages you build in Unbounce. Your main website, pricing page and signup flow stay outside it, and you'll pay twice if you also need a site-wide testing tool.
Pricing, as of November 2026. Starter is $22 a month billed yearly, but A/B testing starts on Experiment at $112 a month billed yearly, or $149 monthly, for up to 30,000 visitors. Optimize is $187 a month billed yearly.
Best for. Teams running paid campaigns who need new landing pages every week.
Skip it if. Your conversions happen on your main site, not on campaign pages.
Before you buy anything, write down the first three things you'd test. If you're stuck, our library of A/B testing ideas and CRO strategies are good places to start.
GA4 for conversions, Clarity for heatmaps and recordings, and a no-code testing tool that installs on your builder. We cover setup in A/B testing for Webflow and A/B testing for WordPress. Webflow-only teams can also look at Webflow Optimize. Total cost runs from $0 to a couple of hundred dollars a month.
PostHog or GA4 for the funnel, Hotjar for surveys and recordings on the marketing site, and a website testing tool for the pages marketing owns. Leave in-app experiments to PostHog's feature flags, and give marketing its own tool so it doesn't wait on sprints.
GA4 or Analytics 360, Contentsquare for journeys and revenue attribution, and Wingify, Optimizely or Kameleoon for experimentation and personalization. Budget for a named owner and an analyst on top of the licenses.
There isn't one best CRO tool, because CRO covers four jobs. For most teams, the best setup is GA4 to measure, Microsoft Clarity or Hotjar to see behavior, and one A/B testing tool sized to your traffic. Enterprises often add Contentsquare and an experimentation platform such as Optimizely or Wingify.
CRO tools help you find where visitors drop off, understand why, and prove which changes increase conversions. Analytics tools find the problem, heatmaps and recordings explain it, A/B testing tools prove the fix, and personalization tools tailor the winning version to different segments.
Yes. GA4 and Microsoft Clarity are free with no paid tier needed. Hotjar has a free plan for up to 200k sessions a month, PostHog has a monthly free tier, and some testing tools offer free plans for low-traffic pages. Our list of the best free A/B testing tools covers the testing side.
CRO, conversion rate optimization, is about getting more website visitors to take an action such as signing up or buying. CRM, customer relationship management, is software for managing contacts, deals and customer history after they convert. The acronyms look alike, but the tools do different jobs.
Two or three. GA4 and Clarity cover measurement and behavior for free, and one testing tool covers experiments. Add a separate personalization or survey tool only when you have a specific use for it and someone to run it.
Not for most of them. Clarity, Hotjar and no-code testing tools install with a script or an app and let marketers build variants visually. You'll want a developer for custom GA4 events, server-side tests and feature flags in tools like PostHog or Optimizely.
Start with what conversion rate optimization is, then learn to read your analytics and run one small test at a time. Our CRO and A/B testing guides walk through the process from research to reading results.
