4QueriesFree audit
Free tools

Tools and calculators for search marketing

A ROAS calculator, an AI visibility checklist and a set of open-source utilities we built for our own work. Free to use, no signup, no limits.

Calculator

ROAS and break-even calculator

Plan ad budget in USD: clicks, leads, sales, CPL, CPA, revenue, net profit, ROAS and the break-even ROAS your margin requires. Formulas are transparent, nothing is hidden.

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Interactive checklist

AI visibility checklist

19 checks in 6 steps: is your brand named by ChatGPT and AI Overviews, can AI quote your pages, are you mentioned off-site. Score and verdict as you go.

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Open Source - MITFree

PMS: self-hosted project management

Lightweight Scrumban for agencies with dozens of client projects: board, sprints, backlog, dashboards. AI agents work the board through CLI and REST API. Open code.

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Chrome ExtensionFree

Clean URL: strip tracking from links

Removes UTM tags, gclid, fbclid, srsltid and 50+ other tracking parameters in one click. Runs locally in your browser, nothing is sent anywhere.

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WordPress PluginFree

Script Injector (GTM) for WordPress

Adds Google Tag Manager to WordPress safely: the GTM script in head, the noscript iframe right after body open, one container ID setting. Survives theme updates.

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Open Source - PythonFree

linkrank: internal PageRank and cannibalization

Crawler builds the internal link graph, scores pages 0-100, finds orphans and keyword cannibalization. Runs locally, no paid APIs.

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Open Source - PythonFree

sitehealth: broken links and sitemap audit

Crawler for broken links (4xx/5xx) and redirect chains plus a sitemap.xml validator with hreflang checks. Runs locally, no paid services.

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Open Source - JavaScriptFree

messenger-tracker: which chat button converts

Sends every WhatsApp, Telegram or Viber click to GA4, dataLayer and Metrica with the button place and page attached. 7 KB, no dependencies.

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No signup

Calculators and checklists run right in the page. The crawlers run on your machine, so your data never leaves it.

Open source

linkrank, siteprobe, messenger-tracker, PMS and Clean URL are MIT-licensed on GitHub. Read the code, fork it, adapt it.

Built in production

Every tool here is one we use on real client work: the crawlers run on audits, the calculator shapes media plans.

Want these tools pointed at your site?

We run linkrank and siteprobe on your domain, check how you show up in AI answers and map the fixes. The first look is free.

Get a free 4Queries audit