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SEO tools made for writers

30 free tools to polish every post before you hit publish. No downloads, no accounts, no limits.

Writing

Headline Analyzer

Score titles for emotion, power words, and length.

Readability Score

Flesch, Flesch-Kincaid, Gunning Fog, SMOG.

Keyword Density

Frequency tables for single words and phrases.

Word Counter

Words, characters, sentences, and reading time.

Slug Generator

Clean, SEO-friendly URLs from any title.

Title Case Converter

AP, Chicago, MLA, or APA — applied correctly.
Preview

SERP Snippet Preview

See your Google result, live — desktop and mobile.

OG & Twitter Preview

Render Facebook, X, and LinkedIn share cards.
Audit

Meta Tag Analyzer

Audit meta, OG, Twitter, canonical, and robots tags.
Technical

HTTP Status Checker

Follow every redirect hop, flag long chains.

Robots.txt Tester

Will Googlebot see this URL? Test allow/block.

Canonical & Hreflang

Audit self-reference and hreflang reciprocity.

HTTP Header Inspector

All response headers plus a security grade.

Broken Link Checker

Find 404s in every outbound link on a page.

XML Sitemap Generator

Paste URLs, get a Google-ready sitemap.xml.
Performance

PageSpeed Insights

Core Web Vitals and Lighthouse scores for any URL.

Mobile-Friendly Test

Responsive, tap targets, and mobile Core Web Vitals.
Research

Keyword Suggestions

Long-tail keyword ideas from real search data.
Domain

Whois Domain Lookup

Registrar, age, expiry, nameservers.

DNS Records Lookup

A, MX, TXT, NS — plus SPF and DMARC checks.

SSL Certificate Check

Issuer, expiry, TLS version, weak-config warnings.
Markup

Schema Generator

Build JSON-LD for Article, FAQ, HowTo, and more.
Marketing

UTM Link Builder

Compose tracked campaign URLs for analytics.

QR Code Generator

PNG + SVG QR codes with custom colors.
Accessibility

Contrast Checker

WCAG AA and AAA compliance at a glance.
AI

AI Meta Description PRO

3 SEO meta descriptions from any article.

AI Headline Rewriter PRO

10 rewrites of any headline, scored for clicks.

AI FAQ Generator PRO

Schema-ready FAQ section from any article.

AI Content Brief PRO

Full SEO brief from a target keyword.

AI Alt Text Writer PRO

Accessibility-ready alt text for any image.
Compare tools

Meta Tag Analyzer vs OG & Twitter Preview

Two audit tools, one sharing workflow

Word Counter vs Readability Score

Two perspectives on the same text

SERP Snippet Preview vs Meta Tag Analyzer

Visualize vs audit

HTTP Status Checker vs HTTP Header Inspector

Path vs payload
FAQ
Are these tools really free?
Yes — every tool on this page is 100% free with no signup, no usage cap, and no watermark. We built them because we use them ourselves to write on WriteUpCafe.
Do you save what I paste into a tool?
No. Text-based tools (headline analyzer, readability, keyword density, word counter, slug generator, title case, SERP preview, schema generator) run entirely in your browser — nothing is sent anywhere. The tools that fetch a URL on your behalf (redirect tracer, robots tester, meta analyzer in URL mode, etc.) hit that URL from our server and discard the response — we don't log or store it.
Can I use the results commercially?
Yes. The scores, slugs, schema markup, and previews are yours to use however you like — on your blog, client work, or anywhere else.
Which tool should I use first?
If you are polishing a post, start with the Headline Analyzer and Readability Score. If you are publishing a page, run the SERP Snippet Preview and Schema Generator before you ship.
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