SimpleToolbox
SEO Tools

SEO & Content Tools

Search engine optimization utilities to help your content rank higher and calculate marketing value.

What people are saying

"The UTM builder is cleaner than Google's own tool. I generate 20-30 campaign URLs a week and the fact that my client campaign data doesn't get stored somewhere is a compliance requirement for two of my agency's accounts."

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Nathan G.

SEO Agency Director

"The keyword ROI calculator changed how I pitch SEO to clients. Instead of talking about rankings, I show them the dollar value of ranking for specific keywords. It closes deals faster and I don't need a $200/month tool subscription to do it."

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Alicia F.

Freelance SEO Consultant

"I check readability scores on every blog post before publishing. Most readability tools want you to paste your entire article into their server. This one runs in the browser — my unpublished content stays unpublished until I decide otherwise."

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Peter K.

Content Marketing Manager

Free SEO tools for keyword analysis, backlink research, meta tag generation, and readability checking. Built for content teams and solo creators who want better search visibility.

Frequently Asked Questions

What SEO tools are available?

Keyword ROI calculator, backlink analyzer, meta tag generator, and readability score checker.

Is the meta tag generator free?

Yes — generate title tags, meta descriptions, Open Graph tags, and Twitter Cards with no account and no limits.

How does the readability checker work?

It calculates Flesch Reading Ease and Flesch-Kincaid Grade Level scores. For general web content, target a grade level of 7–8 and a Reading Ease of 60–70.

Do these tools replace professional SEO tools?

No — they cover specific calculations and utilities. For comprehensive site audits, use tools like Ahrefs, Semrush, or Google Search Console alongside these.