Free SEO & Content Tools for Everyday Publishing Work

Find keyword cannibalization in Search Console data, create readable slugs, inspect sitemaps, clean copied HTML, and handle focused SEO workflowsβ€”without creating an account.

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SEO & Marketing Utilities

Focused browser tools for Search Console analysis, campaign tagging, content conversion, cleanup, revision review, URL creation, and crawl-file work. The core utilities are free and open.

Open the Free Tools β†’
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Build a Lean Marketing Stack

Use AI where it removes a real workflow bottleneck, then measure the handoff instead of collecting overlapping subscriptions.

Read the 2026 Guide β†’
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Start Free

Use open utilities instantly and create an account only when a feature needs it

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Built for Real Work

Focused utilities for conversion, cleanup, comparison, and technical SEO tasks

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No Signup for Core Tools

Open the core SEO and marketing utilities and use them immediately in your browser

Explore the Tools

Start with practical free utilities, then choose member or paid features only when they solve a real need.

Build Your Skills

Practical guides tied to the workflows the free tools support.

Frequently Asked Questions

Everything you need to know about KairoxBuild.

What is KairoxBuild?
KairoxBuild is a collection of practical browser utilities for SEO and marketing work. The core tools cover Search Console opportunity analysis and regex filtering, UTM campaign links, HTML and Markdown conversion, markup cleanup, text comparison, slug creation, sitemap extraction, and robots.txt drafting.
Are there free tools available?
Yes. The core SEO and marketing utilities shown on this page are open without an account. Other KairoxBuild products may use separate access rules.
Do the free tools send my pasted content to an AI model?
The core publishing utilities are designed for direct transformations and checks rather than AI-generated answers. Review each tool page for its exact behavior before using sensitive material.
Is my data secure?
We limit how personal data is used and do not sell it. Review the Privacy Policy for what is collected, why it is needed, and how to contact us about your data.
Which tool should I start with?
Start with GSC Opportunity Finder for prioritization, GSC Regex Builder for Search Console filters, or UTM Campaign Builder for tracking links. The other utilities handle HTML/Markdown conversion, cleanup, text comparison, slugs, sitemap extraction, and robots.txt drafts.
Are these tools a replacement for Search Console or a technical SEO audit?
No. They handle narrow publishing tasks. Use Search Console, crawling, log analysis, and technical review when you need diagnosis of indexing, rendering, or site-wide search performance.

Start with One Real Publishing Task

Pick the utility that matches the job in front of you. No account is required for the core SEO and content tools.

Open the Free Tools β†’