Conversion rate optimization tools: the 14 best CRO tools in 2026
CRO tools do four different jobs, and most roundups blur them together. This one sorts them by the job — see behaviour, run experiments, ask visitors, or get the analysis done for you — and says plainly who each is for.
Best free tool: Microsoft Clarity — unlimited heatmaps and recordings, at the cost of Microsoft using your data.
Best all-round behavioural tool: Hotjar (now Contentsquare) — heatmaps, recordings and surveys in one place.
Best for experiments: VWO for most teams, Optimizely at enterprise scale, Intelligems for Shopify price and offer tests.
Best for Shopify merchants who will never watch recordings: Click Context— the only one here that reads Shopify's own checkout events, so every click carries product, variant and revenue context. It hands that to Claude or ChatGPT and the AI does the analysis. Free plan up to 5,000 sessions/month.
The 14 tools at a glance
| Tool | Job | Best for | Pricing shape |
|---|---|---|---|
| Click Context (ours) | AI-native | Shopify stores that want the analysis done, not recordings watched | Free plan, paid from $39/mo |
| Microsoft Clarity | Behaviour | Free heatmaps and recordings | Free |
| Hotjar (Contentsquare) | Behaviour | Heatmaps plus surveys in one tool | Free tier + paid |
| Lucky Orange | Behaviour | Shopify stores wanting live chat too | Free trial + paid |
| Crazy Egg | Behaviour | Simple heatmaps, light testing | Paid |
| FullStory | Behaviour | Enterprise digital-experience teams | Quote |
| Mouseflow | Behaviour | Friction scoring and form analytics | Free tier + paid |
| Plerdy | Behaviour | Budget multi-tool | Free tier + paid |
| VWO | Experiments | All-round experimentation | Free tier + paid |
| Optimizely | Experiments | Enterprise programmes | Quote |
| Convert | Experiments | Privacy-conscious testing | Paid |
| Intelligems | Experiments | Shopify price and offer tests | Paid (Shopify app) |
| PostHog | Product analytics | Open-source analytics plus replay | Generous free tier |
| Amplitude | Product analytics | Depth on funnels and cohorts | Free tier + paid |
Disclosure: we build Click Context, so it is listed first rather than buried. Further down we say plainly what it is the wrong choice for — judge it on that.
Pricing shapes rather than exact figures on purpose — vendors in this category change plans often. Check the current pricing page before you commit.
If you sell on Shopify, read this part
Almost every tool above is platform-agnostic. That sounds like a feature and is usually a limitation: they see a click on a button, not an add-to-cart for a €180 variant that later refunded. The behaviour is captured; the commerce context is not.
Two consequences follow. First, you cannot rank problems by money, so you fix the loudest issue rather than the most expensive one. Second, nothing reaches into Shopify's checkout, because Shopify sandboxes those pages — which is where the money actually leaks. The reliable path is Shopify's own customer events, as covered in server-side tracking.
Where Click Context fits. It is built only for Shopify. Every event carries product, variant and revenue context, and instead of a dashboard it exposes the data to Claude or ChatGPT over an MCP server. You ask "where am I losing the most cart value and what do those sessions do first?" and get an answer. It is deliberately not a session-replay tool — the premise is that you should not have to watch recordings at all.
It is the wrong choice if you want to watch sessions, run A/B tests, or track a non-Shopify site. For those, pick from the lists above. Fuller comparison: Shopify heatmap and session-replay apps.
See what visitors do: behavioural tools
These record sessions and build heatmaps. They answer where people struggle. All of them require you to do the looking.
- Microsoft Clarity — genuinely free, no traffic cap, solid heatmaps and recordings. The honest trade is data ownership: it is free because Microsoft gets the data. Its AI access is also capped hard — see the Clarity MCP limits.
- Hotjar — the category default, now a Contentsquare product. Strongest when you want heatmaps, recordings and on-site surveys from one vendor. Pricing and packaging shifted after the acquisition; what changed.
- Lucky Orange — popular with Shopify merchants, bundles live chat and polls. Good value; the dashboard gets busy.
- Crazy Egg — the original heatmap tool. Simple and approachable, lighter on depth than the others.
- FullStory — enterprise-grade, excellent search across sessions. Priced and scoped for teams with an analyst.
- Mouseflow — friction scoring surfaces the worst sessions automatically, which saves real time. Strong form analytics.
- Plerdy — bundles heatmaps with SEO and pop-ups. Broad rather than deep; fine on a tight budget.
Prove the fix worked: experimentation tools
- VWO — the best all-rounder for most teams: testing, personalisation and its own heatmaps.
- Optimizely — the enterprise standard. Powerful, and priced for programmes with dedicated headcount.
- Convert — privacy-conscious, strong for agencies running tests across client sites.
- Intelligems — Shopify-native price, shipping and offer testing. Tests things the general tools cannot touch.
One caveat most roundups skip: testing needs traffic. A store doing a few hundred sessions a week will not reach significance on a checkout test in any useful timeframe. Below that threshold, behavioural evidence beats a test you cannot conclude.
Understand the numbers: product analytics
- PostHog — open-source, generous free tier, and it bundles replay with product analytics. Developer-friendly.
- Amplitude — deepest funnel and cohort analysis here. Built for product teams more than store owners.
How to choose without buying four tools
- Name the job first. Seeing behaviour, proving a change, hearing from visitors, and analysing numbers are four jobs. Most stores only need the first at the start.
- Check it understands your commerce data. If it cannot tie a behaviour to revenue, you will not be able to prioritise by money — see behaviour-to-revenue correlation.
- Be honest about who will use it. Tools that require someone to watch recordings every week only work if someone actually will.
- Start free. Clarity, PostHog and Click Context all have real free tiers. Learn what questions you ask before paying.
Then run the loop in the Shopify CRO guide: find the leak, weight it by cart value, explain it with behaviour, fix one thing, verify.
Frequently asked
What are the best conversion rate optimization tools?
There is no single best one, because CRO tools do four different jobs. For seeing what visitors do, Microsoft Clarity (free) and Hotjar are the common picks. For running experiments, VWO and Optimizely lead. For asking visitors why, Hotjar surveys and Qualaroo. For Shopify merchants who want the analysis done rather than the recordings watched, Click Context serves behavioural data straight to an AI assistant. Pick by the job you actually have, not by feature count.
What is the best free CRO tool?
Microsoft Clarity is the strongest genuinely free option — unlimited heatmaps and session recordings with no seat or traffic cap. The trade is data ownership: it is free because Microsoft uses the data. PostHog and Mouseflow also have usable free tiers, and Click Context includes a free plan covering 5,000 sessions a month.
Do I need both a heatmap tool and an A/B testing tool?
Usually yes, eventually — they answer different questions. Behavioural tools tell you where and why visitors struggle; testing tools tell you whether your fix actually worked. Most small stores start with behavioural data, because you need a hypothesis before a test is worth running, and because low-traffic stores rarely reach significance on tests.
Which CRO tools work best with Shopify?
Lucky Orange, Microsoft Clarity and Hotjar all install on Shopify, though none understand Shopify's data model — they see clicks, not carts and variants. Intelligems is Shopify-native for price and offer testing. Click Context is built specifically for Shopify: it reads Shopify's customer events, so every behavioural event carries product, variant and revenue context.
How much do conversion rate optimization tools cost?
The range is wide. Microsoft Clarity is free. Most mid-market behavioural tools run from roughly the price of a mid-tier SaaS seat per month, scaling with traffic or sessions. Enterprise platforms like FullStory and Optimizely are quote-based and typically start in the thousands per year. Check current pricing pages before committing — vendors in this category change plans often.
Or skip the dashboard entirely.
Click Context captures Shopify behavioural data with product and revenue context, then lets Claude or ChatGPT do the CRO analysis for you. Free plan up to 5,000 sessions/month; paid plans from $39/month.