Professional SEO Tools.
Zero Cost.

Agarapu Ramesh — Editor and content reviewer
Editorially reviewed Reviewed by Agarapu Ramesh, science educator (chemistry). LinkedIn
Last reviewed: May 2026 | Standard SEO industry conventions

Analyze backlinks, audit technical SEO, and optimize content density with our privacy-focused tools. No sign-up required.

All Tools

📝 On-Page SEO

Keyword Density

Check n-gram frequency and optimize relevance.

SERP Preview

Visualize how your page flows in Google results.

Title Checker

Validate length and pixel width of titles.

Meta Checker

Optimize descriptions for CTR.

Heading Extractor

Audit H1-H6 structure and meta tags.

Readability Checker

Flesch-Kincaid ease scores.

Word Counter

Count words and reading time.

⚙️ Technical SEO

Robots.txt Tool

Generate and test crawl directives.

Sitemap Tool

Validate XML or generate simple maps.

Schema Generator

JSON-LD for FAQ, Article, Organization.

Canonical Checker

Audit canonical tag implementations.

Hreflang Generator

International SEO tags builder.

Core Web Vitals

LCP, INP, and CLS scores.

Google Index Checker

Verify if your URL is indexed by Google using the site: operator.

📈 Marketing & Calc

UTM Builder

Tag URLs for analytics.

ROI Calculator

Calculate campaign returns.

CTR Calculator

Calculate Click Through Rate.

CPC Calculator

Calculate Cost Per Click.

AdSense Revenue Calculator

Estimate monthly Google AdSense earnings.

YouTube Money Calculator

Estimate YouTube channel earnings.

TikTok Money Calculator

Estimate Creator Fund & brand-deal value.

Instagram Money Calculator

Estimate sponsored post earnings.

Google Ads CPM Calculator

Compute Cost Per Mille.

Conversion Rate Calculator

Compute Conversion Rate %.

What This SEO Tools Collection Includes

This suite provides 26 free SEO and marketing tools organized into three categories. On-Page SEO tools help you optimize content elements like titles, meta descriptions, headings, keywords, and readability. Technical SEO tools handle crawl directives, sitemaps, canonical tags, structured data, hreflang tags, Core Web Vitals, and index checking. Marketing calculators help you track campaigns with UTM parameters, calculate ROI, CTR, CPC, and estimate earnings for AdSense, YouTube, TikTok, and Instagram.

This suite of free SEO tools and online SEO tools provides 26 free SEO and marketing utilities organized into three categories. On-page SEO tools help you optimize content elements such as titles, meta descriptions, headings, keywords, and readability. Technical SEO tools handle crawl directives, sitemaps, canonical tags, structured data, hreflang tags, Core Web Vitals, and index checking. Marketing calculators help you track campaigns using UTM parameters, calculate ROI, CTR, and CPC, and estimate earnings from AdSense, YouTube, TikTok, and Instagram.

Use the SERP Preview Tool to preview how your page title and meta description may appear in search engine results and improve their presentation. The Heading Extractor Tool helps you identify and organize H1, H2, and other headings to analyze your content structure, while the SEO Readability Checker evaluates how easy your content is to read and understand, helping you create clear, engaging, and SEO-friendly web pages.

How to Choose the Right Tool

  • Starting an SEO audit: Use the Heading & Meta Extractor to scan any page for its title, description, headings, canonical tag, and structured data in one click.
  • Optimizing content before publishing: Use the Title Tag Checker, Meta Description Checker, and Readability Checker to ensure your content meets best practice guidelines.
  • Checking keyword usage: Use the Keyword Density Checker to analyze word frequency and identify over-optimization.
  • Fixing technical SEO issues: Use the Canonical Checker, Robots.txt Tool, and Sitemap Validator to audit crawl and indexing configurations.
  • Adding structured data: Use the Schema Markup Generator to create JSON-LD for FAQ, Article, Organization, and other types.
  • Tracking marketing campaigns: Use the UTM Builder to tag URLs and the ROI, CTR, and CPC calculators to measure performance.

Common SEO Workflows

  1. Pre-publish content check: Write content, check readability score, verify keyword density, optimize the title tag and meta description, then preview the SERP snippet.
  2. Technical SEO audit: Scan headings and meta tags, check canonical implementation, validate robots.txt rules, verify the sitemap, and test Core Web Vitals.
  3. Campaign setup: Build UTM-tagged URLs, calculate expected ROI, and set CPC and CTR benchmarks.
  4. Competitive analysis: Fetch competitor titles, descriptions, and heading structures. Compare keyword density and readability scores against your own content.

Frequently Asked Questions

Are these SEO tools really free?

Yes. All tools on this site are completely free to use with no sign-up, no account creation, and no usage limits. The tools run in your browser and use public APIs where needed.

Do I need to create an account to use these tools?

No. All tools work instantly without registration. Just enter your URL or text and get results immediately.

What types of SEO tools are available?

The suite includes on-page SEO tools like keyword density checker, title tag checker, meta description checker, readability checker, and SERP snippet preview. Technical SEO tools include robots.txt generator, sitemap validator, canonical checker, schema markup generator, hreflang generator, and Core Web Vitals checker. Marketing tools include UTM builder, ROI calculator, CTR calculator, and CPC calculator.

How do the URL-based tools fetch page data?

Tools that analyze URLs use a server-side proxy to fetch the page HTML. The proxy retrieves the raw HTML content, which is then parsed in your browser. Only publicly accessible pages can be analyzed.

Which tool should I use first for an SEO audit?

Start with the Heading and Meta Extractor to get a quick overview of any page's title, description, headings, and schema markup. Then use specific tools like the Title Tag Checker or Canonical Checker to dig into individual elements.

Is my data stored or shared?

No. All analysis happens in your browser. URLs are sent to the proxy server only to fetch page content. No data is stored, logged, or shared with third parties.

How can a word counter for SEO help optimize website content?

A word counter for SEO helps you measure the total number of words in blog posts, landing pages, and website content. It allows you to track content length, maintain editorial guidelines, and create well-structured content that addresses search intent without unnecessary repetition.

Why should you use an XML sitemap validator for your website?

An XML sitemap validator checks your sitemap for formatting errors, invalid URLs, and structural issues that may affect search engine crawling. Validating your sitemap helps search engines discover important pages more efficiently and supports your website's technical SEO efforts.

Sources and References

How to use these SEO tools

  1. Choose the checker, calculator, or generator that matches the page, campaign, or markup you are reviewing.
  2. Paste the URL, keyword, text, or metric values requested by the tool.
  3. Use the output as a diagnostic signal, then verify important SEO decisions in Search Console, analytics, and official platform documentation.

Bulk SEO Tools

Bulk SEO tools help review many URLs or domains together, including index checks, referring domain checks, redirects, headers, and technical signals. Use them for audits, migration QA, and recurring site health checks.