Conversion rate optimization is about getting more of your existing visitors to sign up, buy or get in touch. If many of those contacts come by phone, call tracking shows which pages drive them. The tools here help you find out why people leave and test what makes them stay: A/B testing platforms compare page versions, heatmaps and session recordings show where visitors click and scroll, and on-site surveys ask them directly. Personalization tools tailor content to different audiences, and popup tools capture leads before visitors go. Most teams start with behavior analytics to find problems, then move to testing once they have enough traffic.
Conversion-rate optimization software covers several distinct methods: behavioral observation, experimentation, landing-page creation, surveys, personalization and lead-capture overlays. The right tool depends on whether you are still diagnosing a problem or already have a hypothesis to validate. Heatmaps and recordings explain behavior; experiments compare alternatives; popup and landing-page tools change the experience. This list spans those stages and is organized by situation instead of treating observation and experimentation products as direct substitutes.
By SEM Solutions Editorial Team. Researched from vendor documentation, not hands-on testing. Ordered by Overall Score. Checked October 6, 2026. How we research
Product-led optimization
#4 of 28 in Conversion Rate Optimization (CRO)
PostHog combines product analytics with session replay, feature flags and experimentation, which allows teams to analyze a funnel, inspect user behavior and roll out changes from the same product stack.
Landing-page optimization
#7 of 28 in Conversion Rate Optimization (CRO)
Unbounce combines landing-page building with conversion-focused tools, making it useful when marketers need to create and revise campaign pages without waiting for the main website release cycle. Forms, variants and traffic-routing capabilities support paid-campaign workflows where each acquisition source may need a dedicated destination and message.
For enterprise experimentation
#13 of 28 in Conversion Rate Optimization (CRO)
Optimizely supports web and feature experimentation alongside broader digital-experience products, making it relevant when testing extends beyond marketing pages into product releases and application features. Teams can connect experiments to controlled rollouts and personalization workflows. It is best suited to organizations where marketing, product and engineering share experimentation, instead of one landing-page team owning it.
Friction analysis
#18 of 28 in Conversion Rate Optimization (CRO)
Mouseflow covers behavior analytics through session replay, heatmaps, funnels and form analytics. That mix is useful for finding where users hesitate, abandon a process or encounter repeated friction before the team proposes a redesign. It is strongest at the diagnosis stage of CRO, with deployment of every experimental variation handled elsewhere.
For visual behavior diagnosis
#21 of 28 in Conversion Rate Optimization (CRO)
Crazy Egg combines heatmaps, session recordings, surveys and A/B testing, allowing teams to move from observing page behavior to checking a change in the same product. This serves marketing sites with page-level optimization questions; its visual reports help identify where visitors click or stop engaging before a team commits development time to an experiment.
For on-site lead capture
#22 of 28 in Conversion Rate Optimization (CRO)
OptinMonster covers popups, floating bars and other on-site campaigns triggered by visitor behavior and targeting rules. It pays off when the optimization goal is to capture an email address, present an offer or reduce abandonment without rebuilding the underlying page. Display rules let teams vary campaigns by audience and context.
Focused web experiments
#24 of 28 in Conversion Rate Optimization (CRO)
Convert is centered on A/B and split testing, with targeting and experiment controls for teams that already have hypotheses to validate. Consider it when the optimization program needs controlled comparisons beyond heatmaps or recordings; it fits organizations treating experimentation as a distinct discipline with clear audience and variation management.
#1 of 28 in Conversion Rate Optimization (CRO)
Online form builder extended with Tables, e-signatures, approval flows and no-code apps.
Best for: Small and mid-sized teams that collect data, payments and signatures through forms and want approvals and storage in the same account.
#2 of 28 in Conversion Rate Optimization (CRO)
Contentsquare (formerly Hotjar) is included in CRO for buyers comparing tools for understanding visitor behavior and improving conversion paths. Focus on testing, behavioral insight and fit with the wider workflow.
Best for: Teams that want to visually understand user behavior alongside quantitative analytics.
#3 of 28 in Conversion Rate Optimization (CRO)
Conversational form builder for lead capture, scored quizzes and surveys with CRM sync.
Best for: Marketing teams collecting leads through branded forms and quizzes that should flow straight into a CRM.
#4 of 28 in Conversion Rate Optimization (CRO)
Product engineering suite combining analytics, replay and feature flags.
Best for: Product and engineering teams that want analytics, experimentation, feature delivery, replay, and data tooling in a developer-oriented stack.
#5 of 28 in Conversion Rate Optimization (CRO)
Runtime control platform for feature flags, experimentation and progressive software releases.
Best for: Engineering and product teams that need controlled feature releases, experimentation and operational kill switches.
#6 of 28 in Conversion Rate Optimization (CRO)
Product development platform combining experimentation, feature gates, analytics and session replay.
Best for: Product and engineering teams that want feature delivery and statistically measured experiments on shared data.
#7 of 28 in Conversion Rate Optimization (CRO)
Landing page builder with A/B testing, AI-driven Smart Traffic routing and an MCP server.
Best for: Paid acquisition teams and agencies that build many campaign landing pages and want automated variant routing to lift conversions.
#8 of 28 in Conversion Rate Optimization (CRO)
Flexible form builder with databases, scheduling and payments.
Best for: Teams using Airtable, Notion, CRMs, or spreadsheets that need forms capable of creating and updating connected records.
#9 of 28 in Conversion Rate Optimization (CRO)
Document-style form builder with payments, scheduling and calculations.
Best for: Small businesses and teams that need branded forms combining content, payments, calculations, bookings, or post-submission automation.
#10 of 28 in Conversion Rate Optimization (CRO)
Digital experience analytics with session replay and heatmaps.
Best for: Product and CRO teams diagnosing where users struggle.
#11 of 28 in Conversion Rate Optimization (CRO)
Behavior analytics with session recordings, heatmaps, smart events, and Copilot summaries.
Best for: Website teams that need visual behavior data to investigate UX friction and conversion issues.
#12 of 28 in Conversion Rate Optimization (CRO)
Minimal form builder with conditional logic, payments and calculations.
Best for: Individuals and small teams that want fast, flexible forms with logic and payments without a visually heavy form-building interface.
#13 of 28 in Conversion Rate Optimization (CRO)
Digital experience platform combining web and feature experimentation with CMS, personalization and commerce.
Best for: Enterprises running a structured testing program across marketing sites and product code, with engineers available for SDK work.
#14 of 28 in Conversion Rate Optimization (CRO)
Popup and form platform with behavioral triggers, autoresponders, analytics, and extensive integrations.
Best for: Businesses that want behavior-triggered website lead capture connected directly to email, CRM, and automation platforms.
#15 of 28 in Conversion Rate Optimization (CRO)
Funnel builder for lead capture and ecommerce popups, forms and quizzes.
Best for: Ecommerce and B2B marketers capturing leads on-site.
#16 of 28 in Conversion Rate Optimization (CRO)
Ecommerce CRO platform for popups, onsite personalization and product-page experimentation.
Best for: Ecommerce teams that want onsite personalization and popup campaigns without rebuilding their storefront.
#17 of 28 in Conversion Rate Optimization (CRO)
Landing page platform for paid campaigns with ad mapping, server-side tests and personalization.
Best for: PPC and demand generation teams that build a dedicated landing page for each ad group and want to test and personalize those pages.
#18 of 28 in Conversion Rate Optimization (CRO)
Behavior analytics suite combining session replay, heatmaps and friction detection.
Best for: Conversion, UX, and ecommerce teams that want session-level evidence alongside funnels, forms, and automated friction detection.
#19 of 28 in Conversion Rate Optimization (CRO)
Onsite engagement platform for popups, notification feeds, web push, and personalized campaigns.
Best for: Ecommerce and marketing teams that want targeted onsite messaging connected to their existing customer and analytics stack.
#20 of 28 in Conversion Rate Optimization (CRO)
Wingify (formerly VWO) is included in CRO for buyers comparing tools for understanding visitor behavior and improving conversion paths. Focus on testing, behavioral insight and fit with the wider workflow.
Best for: Teams running a structured, ongoing A/B testing program.
#21 of 28 in Conversion Rate Optimization (CRO)
Website behavior analytics combining heatmaps, recordings and surveys.
Best for: Marketing and conversion teams that want visual website behavior evidence plus lightweight testing in the same tool.
#22 of 28 in Conversion Rate Optimization (CRO)
Onsite conversion platform using behavior-triggered popups, targeting rules, retargeting, and lead integrations.
Best for: Publishers, ecommerce stores, and lead-generation sites that want behavior-based onsite campaigns tied to existing email or CRM tools.
#23 of 28 in Conversion Rate Optimization (CRO)
Landing-page platform with programmatic pages, testing, event tracking and lead management.
Best for: Marketing teams and agencies that need landing pages plus testing and event tracking without developer work.
#24 of 28 in Conversion Rate Optimization (CRO)
Privacy-conscious experimentation platform for A/B, split-URL, multipage, and personalization testing.
Best for: Optimization teams and agencies that need controlled website experimentation with detailed targeting and integrations into existing analytics stacks.
#25 of 28 in Conversion Rate Optimization (CRO)
Shopify-focused conversion and retention platform combining popups, email and SMS.
Best for: Growing Shopify merchants that want list capture, cart recovery, email, and SMS driven by store behavior.
#26 of 28 in Conversion Rate Optimization (CRO)
Onsite messaging platform with targeted campaigns, revenue attribution, forms, and ecommerce-focused personalization.
Best for: Ecommerce teams that want targeted onsite messages with lead synchronization and campaign-level revenue measurement.
#27 of 28 in Conversion Rate Optimization (CRO)
Landing-page builder with AI creation, split testing, heatmaps, and direct marketing integrations.
Best for: Small businesses and marketers that need landing pages they can publish, test, and connect to an existing marketing stack.
#28 of 28 in Conversion Rate Optimization (CRO)
AI-powered ecommerce personalization, merchandising and search.
Best for: Mid-size and enterprise ecommerce brands personalizing the storefront.
How each vendor's own website performs in organic search, from Ahrefs and Semrush data. It ranks market presence, not the product itself. Each tool is scored against the other tools we track in its main category, and tools without enough data aren't scored.
28
Tools scored
50
Average score
50
Median score
26 to 85
Score range
Score distribution (observed, not curve-fit)
Momentum trend
Data confidence
Notable this pull
Landingi+41 pts vs. authority
Microsoft Clarity-81 pts vs. authority
Wingify (formerly VWO)98/100
Jotform88/100
Contentsquare (formerly Hotjar)Medium"Notable" means most extreme in the current cohort, not necessarily a problem. See how Market Signal works for what provider disagreement and visibility efficiency actually measure.
Data through September 2026, pulled October 6 to 12, 2026.
| # | Tool | Market Signal |
|---|---|---|
| 1 |  Jotform | 85 |
| 2 |  Optimizely | 74 |
| 3 |  Typeform | 72 |
| 4 |  Contentsquare (formerly Hotjar) | 67 |
| 5 |  Crazy Egg | 65 |
| 6 |  Unbounce | 64 |
| 7 |  Fullstory | 64 |
| 8 |  PostHog | 63 |
| 9 |  Microsoft Clarity | 58 |
| 10 |  Statsig | 57 |
| 11 |  Tally | 55 |
| 12 |  Fillout | 53 |
| 13 |  LaunchDarkly | 53 |
| 14 |  Wingify (formerly VWO) | 51 |
| 15 |  OptinMonster | 50 |
| 16 |  Mouseflow | 46 |
| 17 |  Wisepops | 45 |
| 18 |  Nosto | 43 |
| 19 |  Paperform | 41 |
| 20 |  Instapage | 40 |
| 21 |  Convert | 37 |
| 22 |  ConvertFlow | 34 |
| 23 |  OptiMonk | 33 |
| 24 |  Leadpages | 31 |
| 25 |  Poptin | 30 |
| 26 |  Privy | 30 |
| 27 |  Landingi | 29 |
| 28 |  Sleeknote | 26 |
Ranked by Market Signal, a score computed from Ahrefs and Semrush data about each vendor's own website. It is not an assessment of the product itself. How this works →
Behavior analytics shows how visitors interact with the current experience through recordings, heatmaps, funnels or form data. A/B testing compares a controlled change against another version. One helps generate hypotheses; the other helps evaluate whether a proposed change improves the chosen outcome.
They provide data, deployment mechanisms and measurement. Results depend on the quality of the hypothesis, traffic, offer, UX and experiment design. A tool can make optimization easier to run, but it cannot guarantee that a change will improve user behavior.
Yes, Jotform, Contentsquare (formerly Hotjar), Typeform, PostHog, LaunchDarkly, Statsig, Fillout, Paperform, Fullstory, Microsoft Clarity, Tally, Poptin, ConvertFlow, OptiMonk and Mouseflow all offer a free plan. Free tiers usually come with usage limits, so check whether they cover your volume before relying on them long-term.
Among the tools listed here whose main product is in this category and whose pricing we've verified, OptinMonster has the lowest listed starting price: $9/mo (annual billing). Starting price isn't the whole picture, so check what's included at that tier before deciding.