Free SEO tools
25 focused utilities in four groups — on-page, technical, content and links. Most run entirely in your browser; the two live checkers fetch only the URL you ask for. Nothing is estimated or made up.
On-Page SEO Tools
Titles, descriptions, headings, keywords and images. Overview
SEO Page Analyzer
Fetch a live URL and review status, tags, headings, links, images and schema in one report.
Live URL or pasted HTMLMeta Tag Analyzer
List every meta and link tag in a page's head, with length checks and advice.
Runs in your browserMeta Tag Generator
Write a clean set of title, description, robots, canonical and social tags.
Runs in your browserTitle Tag Checker
Check titles for pixel width, truncation, keyword position, brand and duplicates — in bulk.
Runs in your browserMeta Description Checker
Check descriptions for width, truncation, keyword use, quotes and duplicates — in bulk.
Runs in your browserSERP Snippet Preview
Preview a title, description and URL together as a search result on desktop or mobile.
Runs in your browserHeading Structure Analyzer
Map a page's H1–H6 outline and find missing H1s, skipped levels and empty headings.
Runs in your browserKeyword Density Checker
Measure how often chosen keywords appear, their density and where they first occur.
Runs in your browserKeyword Prominence Checker
See where a keyword appears in a page: title, H1, opening, subheadings, URL, alt text.
Runs in your browserImage Alt Text Checker
Find images with missing, empty or file-name alt text — plus size and lazy-loading.
Runs in your browser
Technical SEO Tools
Robots.txt, sitemaps, canonicals, hreflang, redirects, status codes and schema. Overview
Robots.txt Generator
Build a robots.txt with default policy, custom rules, AI crawler blocks and sitemaps.
Runs in your browserRobots.txt Tester & Validator
Validate a robots.txt file and test which URLs a crawler may fetch — and why.
Runs in your browserXML Sitemap Generator
Turn a list of URLs into a valid, escaped sitemap.xml with optional lastmod.
Runs in your browserXML Sitemap Validator
Check sitemap XML for syntax, namespace, URL, lastmod, duplicate and size problems.
Runs in your browserCanonical URL Checker
Find self-referencing, missing, relative, conflicting or misplaced canonical tags.
Runs in your browserHreflang Generator & Validator
Generate hreflang tags for HTML, sitemaps or headers — and validate existing ones.
Runs in your browserRedirect Rule Generator
Create 301/302 redirect rules for Apache .htaccess or Nginx from a list of URLs.
Runs in your browserHTTP Status Code Checker
Live check of up to 10 URLs: status, full redirect chain, final URL and timing.
Live check via our serverOpen Graph Analyzer
Check Open Graph and Twitter/X card tags and preview how a shared link may look.
Runs in your browserSchema Markup Validator
Parse JSON-LD, find syntax errors and check common schema.org types for key properties.
Runs in your browser
Content SEO Tools
Word counts, readability, length and word frequency. Overview
Word Counter & Content Analyzer
Live word, character, sentence and paragraph counts with structure analysis.
Runs in your browserReadability Checker
Six readability formulas plus the hardest sentences and complex-word share.
Runs in your browserContent Length Analyzer
Main-content word count, section lengths and comparison with your own targets.
Runs in your browserKeyword Frequency Analyzer
Full frequency table of words and 1–4 word phrases, filterable and exportable.
Runs in your browser
Link Analysis Tools
Internal and external links, rel attributes and anchor text. Overview
How these tools work
Built to be trusted: every number you see can be traced back to your input or a real request.
Local by default
Text, HTML, XML and JSON you paste is processed by JavaScript in your browser. It isn't uploaded or stored.
Two live checkers, clearly labelled
The SEO Page Analyzer and HTTP Status Code Checker request the URL from our server and show exactly what came back — or say plainly that the fetch failed.
No invented metrics
No rankings, traffic, search volume, authority scores or backlink counts. Those need third-party data, and we won't approximate them.
From checking pages to building links
Technical checks make sure a page can be crawled and understood. Content checks make sure it's worth reading. Links help search engines judge which pages deserve attention — and they work best when the first two are already in place.
If you're preparing pages for link building, our guides on link building fundamentals and link relevance explain what to look for. When you're ready for placements, compare PBN backlinks — our primary service — with our general backlink packages.