Website Visualizers Compared
Sitemaps, Crawl Maps, Device Previews, Heatmaps and AI Site Builders

“Website visualizer” is not an established product category, and none of the vendors below uses the term on the pages we read. In this guide it means a tool that turns a website — its structure, its look on different screens, or how visitors move through it — into something you can see. That is our own working definition, and it covers five kinds of tool, one per section.

Everything was read from each company’s own pages on 17 September 2026. This is not a ranking, and nothing here is legal advice.

How to read this guide

• Prices are shown as each page displayed them. Some pages were served in euros or pounds, others in US dollars, depending on where they were read. We have not converted anything. Prices vary by country and change often.
• “Could not read” means the price only appears after the page runs JavaScript, or its billing period was not stated in the page text. We did not guess.

1. Visual sitemap builders

These draw a site’s pages as a tree, either from scratch or by crawling an existing site.

Tool	Builds from a live site?	Free version	Paid (as shown, USD)
Octopus.do	Yes: 300 pages free, 3,000 paid	1 user, 1 project, “no time limit”	Pro $16/month, or $14/month billed yearly
Slickplan	Yes	“There will always be a free version of Slickplan” (one sitemap, one user); “14 day free trial, no credit card required”	Basic $10.79/month billed annually
FlowMapp	Yes: “Generate sitemap from URL”	1 project, 20 pages	Pro $15/month, or $8.25/month billed annually
VisualSitemaps	Yes	25 pages a month	Mini $29/month; Pro $99/month
WriteMaps	Yes: “Crawl websites”	2 projects, 10 pages per project	Unlimited $16/month
GlooMaps	No, drawn by hand	Free, “No user account needed”	—
PowerMapper	Yes, desktop crawler	Free trial	Could not read

Details worth knowing:

• Octopus.do lets you “Start off a project with crawling, using a template, or AI-generate it from a prompt”.
• GlooMaps: “The sitemap is available for 14 days unless re-visited.” Its footer reads “©2018”.
• PowerMapper runs on “Macintosh and Windows” and “builds a visual site map of web site structure automatically.”
• Several of these also add AI generation: Slickplan mentions its “AI assistant”, FlowMapp an “AI sitemap generator”, and WriteMaps says “Use AI to generate sitemaps”.

2. SEO crawl maps

SEO crawlers can draw the pages they find as a diagram of the site’s internal links or folders.

Tool	What it draws	Free version	Paid (as shown)
Screaming Frog SEO Spider	Force-directed diagrams and tree graphs	Up to 500 URLs; site visualisations included	£199 a year on its product page
Sitebulb	Interactive crawl maps	14-day trial	Desktop prices could not read; Cloud “From £95/mo”
JetOctopus	“Crawl budget visualization”	7-day trial, 10k URLs, no card	Could not read the billing period
Ahrefs Free (formerly Ahrefs Webmaster Tools)	Site Audit charts and graphs	Free for verified sites	Paid Ahrefs plans from €27/month as shown

Details worth knowing:

• Screaming Frog: “The Screaming Frog SEO Spider is free, however you can purchase a licence to crawl more than 500 URLs and have access to advanced features.” In its pricing table, “Site Visualisations” is ticked for the free version. It runs on “Windows, macOS and Linux”, and its crawl visualisations show the site “by shortest path to a page” and, by default, not every link; right-clicking a node and choosing “Show Inlinks” updates a force-directed diagram “to show all incoming links”. “Licences are per user” and “Licences last 1 year.”
• Sitebulb runs on Windows or Mac, and its pricing page lists Crawl Maps under “All plans get”.
• Ahrefs says “Ahrefs Webmaster Tools is now Ahrefs Free”, that it can be used “on an unlimited number of verified websites”, and describes its Site Audit output as “Visualize data with charts and graphs” rather than a link map.
• Semrush is now owned by Adobe, which “today announced the completion of its acquisition of Semrush Holdings, Inc.” on 28 April 2026.

3. Device previews and mockups

These show how a page looks on different screen sizes, or place a screenshot in a device frame.

Tool	What it does	Free version	Paid (as shown)
Responsively App	Many screen sizes side by side	Free and open source	—
Polypane	Browser with synced panes	“Use for free for 14 days”	Could not read
Sizzy	Browser with device previews	14-day free trial	$15/month, or $12/month billed $144 a year
Chrome DevTools device mode	Built-in screen simulation	Free, in Chrome	—
BrowserStack	Real browsers and devices in the cloud	Free trial	Freelancer $12.50/month billed annually, or $19 month-to-month
Mockuuups Studio	Device mockups, including from a live URL	Free mockups	Professional $15 billed per month, or billed $120 per year
Screely (screely.app)	Screenshot frames in the browser	Free	—

Details worth knowing:

• Responsively App: “Any click, scroll or navigation that you perform in one device will be replicated to all devices in real-time.” It is licensed under the AGPL-3.0, and its latest release is 1.18.0 (17 February 2026).
• Polypane works on “Windows, Mac, Linux”. Sizzy lists “macOS, Windows and Linux”.
• Chrome’s own documentation is candid about device mode: “Think of device mode as a first-order approximation of how your page looks and feels on a mobile device.” It adds: “With device mode you don’t actually run your code on a mobile device.”
• BrowserStack says it covers “3500+ real desktop & mobile browser combinations”.
• LambdaTest is now TestMu AI. Its announcement says: “LambdaTest became TestMu AI on January 12, 2026”.
• Screely: the screely.app tool says images are “Processed locally on your device. No uploads, no account, no watermark.” The older address, screely.com, no longer hosts a screenshot tool: on 17 September 2026 it served Thai-language pages about online football betting. We could not confirm whether screely.app is by the same maker.

4. Heatmaps and session replay

Heatmaps show where visitors click and scroll in aggregate; session replay records what individual visitors did.

Tool	Free version	Paid (as shown)	What the vendor says about masking
Microsoft Clarity	“No limits on traffic”	—	“Content in the input boxes is masked in all modes”
Hotjar (priced through Contentsquare)	200k monthly sessions, 1 project	Growth from $49, from 7k monthly sessions; billing period could not read	“By default, Hotjar suppresses user input.”
Mouseflow	500 sessions a month	Essential 25 a month billed annually, or 39 month to month, for 5,000 sessions; the page’s structured data gives the currency as EUR	“we do not record keystrokes by default”
Fullstory	30,000 monthly sessions	Could not read	Offers a “Private by Default” mode
Crazy Egg	30-day free trial	Starter $29/month; “All plans are billed annually.”	Could not find
PostHog	5K recordings a month	Usage-based beyond that	Inputs: “we mask these by default”
Lucky Orange	7-day free trial	Build $32/month paid annually, or $39/month	Could not find
Smartlook	Existing accounts only	No new plans or renewals sold	—

Details worth knowing:

• Smartlook is shutting down. It says “Smartlook has joined Cisco!”, that from “31 May 2026 – End of Sale (EoS): No new Smartlook subscriptions will be sold”, and that on “30 September 2027 – Platform Decommissioned: The Smartlook platform will be deactivated”.
• Microsoft Clarity says it “masks sensitive content on your website by default”. Since 31 October 2025, for visitors from the EEA, UK and Switzerland, “If cookie consent is not provided to Clarity by a website owner, Clarity will not place a cookie”, and “session recordings, heatmaps, and funnel tracking, may be limited, incomplete, or unavailable.”
• Hotjar also notes that “Hotjar disables most content suppression by default”, and that changing the settings “will not apply the updated settings retroactively”.
• PostHog: “Our privacy controls run in the browser or mobile app. So, masked data is never sent over the network to PostHog.”
• Fullstory offers settings to “Capture data only with user consent”.

What regulators say

These are quoted, not interpreted. Which rules apply to a particular site depends on where it and its visitors are.

• UK — the ICO finalised its guidance on storage and access technologies on 29 April 2026. Under “You must obtain consent for:”, it lists “logs or recordings of individual visitors to your website and the actions they took (if not obtained for the purposes of security)”. In a table of activities “when using aggregate statistical information” that are “likely to meet the statistical purposes exception”, it lists “User interactions with pages on your website (eg average scroll depth or the total number of hits on sections of a page)”. It adds: “The statistical purposes exception does not allow you to monitor or track individual visitors to your service.” The guidance does not use the words “session replay” or “heatmap”.
• France — the CNIL has published a draft recommendation on session replay; its public consultation closed on 22 April 2026, and we found no final version on its site. The CNIL describes these tools as recording “mouse movements, screen touches, clicks, page scrolling and, in some cases, forms inputs”. The draft says (in the CNIL’s English courtesy translation): “The purposes pursued by the deployment of session replay tools are subject to the prior consent of users.”
• EU — the EDPB’s Guidelines 2/2023 (version 2.0, adopted 7 October 2024) set out what counts as storing or accessing information on a user’s device under the ePrivacy consent rule (Article 5(3)), including JavaScript that makes the browser send information. They do not name session replay, and they “do not address the circumstances under which a processing operation may fall within the exemptions from the consent requirement”.

5. AI tools that draft a site’s structure

Many AI builders turn a prompt into pages. The ones below say they produce a sitemap, page structure or screens.

Tool	Structure output	Free version	Paid (as shown, USD)
Relume	“Brief, sitemap, wireframe, designs”	“Free forever · No card needed”	Pro from $14/month
Framer AI	Editable pages and sections	$0, “500 AI credits to try”	Basic $10/month, Pro $30/month on yearly billing
Uizard	“Generate projects, screens, and themes”	3 AI generations a month, 2 projects	Pro $12/month billed annually
Google Stitch	UI designs and front-end code	Could not read	Could not read

Details worth knowing:

• Relume says it can “Generate a full site structure”. The old relume.io address now redirects to relume.ai.
• Framer: “Framer’s AI agent creates editable pages, sections, copy, and visuals directly in your project.” Its old /wireframer/ page now redirects to /ai/.
• Google Stitch began in May 2025 as “a new experiment from Google Labs”, and on 18 March 2026 Google said: “Today, we are evolving Stitch into an AI-native software design canvas.” The old Galileo AI address, usegalileo.ai, now redirects to Stitch.

Questions to ask before you choose

1. Do you need to see structure, screens or behaviour? Those are sections 1, 2 and 5 (structure), 3 (screens) and 4 (behaviour).
2. Does the free version cover your site’s size? Check page, URL or session limits.
3. Is the price monthly or billed yearly, and in which currency?
4. Is the tool still being sold? Smartlook shows that a working product can be wound down.
5. If you record visitors, what do your visitors’ local rules require? Read the regulator’s own guidance.

Sources

Each company’s own product, pricing, documentation, help and blog pages, and each regulator’s own guidance, read on 17 September 2026: Octopus.do (pricing, home); Slickplan (home, pricing); FlowMapp (pricing); VisualSitemaps (pricing); WriteMaps (pricing); GlooMaps (home); PowerMapper (product and site-structure pages); Screaming Frog (SEO Spider page, pricing, visualisations tutorial); Sitebulb (crawl maps, pricing, Cloud); JetOctopus (pricing); Ahrefs (Ahrefs Free, pricing); Adobe newsroom (Semrush acquisition, 28 April 2026); Responsively App (home, GitHub repository); Polypane (pricing); Sizzy (home); Chrome for Developers (device mode); BrowserStack (pricing); TestMu AI (rebrand announcement); Mockuuups Studio (pricing); Screely (screely.app, and screely.com as observed); Microsoft Clarity (home, consent update, masking and Consent API documentation); Contentsquare (pricing) and Hotjar (help centre); Mouseflow (pricing, help centre); Fullstory (plans, help centre); Crazy Egg (pricing); PostHog (pricing, session replay privacy); Lucky Orange (pricing); Smartlook (“The Future of Smartlook”); UK Information Commissioner’s Office (guidance on the use of storage and access technologies); CNIL (session replay consultation and draft recommendation); European Data Protection Board (Guidelines 2/2023, version 2.0); Relume (pricing); Framer (AI and pricing pages); Uizard (pricing); Google for Developers blog (Stitch, 20 May 2025) and Google blog (18 March 2026).

Checked September 2026.

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