Crazy Egg

ALMOST

A weekend of work, and real gaps remain.

Heatmaps, scroll maps and click reports for a page, plus simple A/B testing. You point it at a URL and it shows where people clicked and how far down they read.

Promptfree, for everyone, and the only version there is

Build me click and scroll maps for my own pages.

STACK
- A small script, one endpoint, SQLite, and a viewer page

WHAT A CLICK IS
- Record the nearest stable selector, the offset within that element as a percentage, and the viewport width bucket
- Never record absolute page coordinates: a responsive layout makes them meaningless a week later

SCROLL
- Record the deepest point reached as a percentage of document height, sampled on scroll end and on page hide
- Bucket by viewport width, same as clicks

THE SNAPSHOT
- Capture the rendered page once per width bucket per week and store it
- A map drawn over an old snapshot still means something after a redesign; one drawn over today's does not

THE VIEWER
- Pick a page and a width bucket, draw the snapshot, overlay the points as a blurred density canvas
- A scroll ruler down the side showing the percentage of visitors who reached each band

Include the script, the schema, the snapshot job and the viewer.

What you lose

Heatmaps that stay meaningful across breakpoints, which is the hard part — a click at 390px and one at 1440px are not the same click
Scroll depth normalised across page lengths
A snapshot of the page as it looked when the data was collected, so an old map still means something after a redesign
A/B testing wired into the same script

If you would rather not build

Microsoft Clarity, which does this for nothing

The escape hatch

open source · no votes, no paid placement

OpenReplay

Self-hosted replay and heatmaps in one deployment.

openreplay/openreplayfree · open source

PostHog

Product analytics with a heatmap toolbar, self-hostable.

PostHog/posthogfree · open source

Why this verdict

our own opinion · changed only by a person

55/100

Verdict kinda at 55. Collecting clicks is trivial; keeping a map honest across breakpoints and redesigns is what takes the weekend.

History

tracked since 10 Aug 2026 · nothing is ever overwritten

Interest · last 30 days

Nothing recorded yet. This chart fills in once the page has visitors, votes or prompt copies — it will not draw a flat line to look busy.

Questions about Crazy Egg

answered from the record above

Is Crazy Egg free?

No — the plan we track is $29 a month. Plus at $29/month billed monthly, around $24 annually, for 75,000 tracked page views.

Can you replace Crazy Egg by building your own?

ALMOST. A weekend of work, and real gaps remain. Replacement score 55 out of 100, build time a weekend. Read what you lose before you decide.

How much does Crazy Egg cost?

$29 a month on Plus — $348 a year. Recorded 9 Aug 2026.

What do you lose by replacing Crazy Egg?

Heatmaps that stay meaningful across breakpoints, which is the hard part — a click at 390px and one at 1440px are not the same click; Scroll depth normalised across page lengths; A snapshot of the page as it looked when the data was collected, so an old map still means something after a redesign; A/B testing wired into the same script. If any of those carry weight for you, keep paying.

Is there an open-source alternative to Crazy Egg?

Yes: OpenReplay, PostHog. The prompt on this page is for when you want it your way instead.

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