The Free SEO Resource Center
96 browser-based tools, 12 in-depth guides and a growing library of checklists covering technical, content, local, link building and AI SEO — built by practitioners, free forever.
Featured tools
See all 96 →Generate 10 click-worthy, SEO-friendly title tag options for any keyword.
Generate 5 unique meta description options scored against the 140–160 char sweet spot.
Group a long keyword list into topical clusters using shared word stems.
Analyze internal vs external links, anchor text and nofollow on any page.
Interactive checklist covering LCP, INP and CLS optimization wins.
Check whether GPTBot, Google-Extended, Perplexity and Claude can crawl and understand a page.
Audit your content for Generative Engine Optimization across structure, citations and AI accessibility.
Build FAQPage JSON-LD for rich snippets in Google search results.
Detect inconsistent name, address and phone across your local citations.
Latest guides
Practitioner-led walkthroughs and pillar content.
How to Write Content Briefs That Actually Rank
The brief is the highest-leverage artifact in modern content SEO. Here's how to write one in under 30 minutes.
Core Web Vitals: A Practical Checklist for 2026
Stop debating Core Web Vitals and start fixing them. A practical, prioritized checklist.
Ahrefs vs Moz vs Ubersuggest: Three Tiers Compared
A clear-eyed look at three platforms targeting very different buyers.
Surfer SEO vs Clearscope: Content Optimization Tools Compared
Both promise better rankings through smarter content briefs. Here's where each one actually wins.
Browse by topic
End-to-end pillar guides covering SEO from research to reporting.
Crawling, indexing, Core Web Vitals, schema and site architecture.
Briefs, outlines, EEAT, topical authority and on-page optimization.
Google Business Profile, citations, reviews and local rankings.
Outreach, broken-link, digital PR and relevancy-based link earning.
Generative Engine Optimization for ChatGPT, Perplexity, Gemini and Claude.
Intent mapping, clustering, gap analysis and modern keyword workflows.
Titles, meta, headings, internal links and conversion-focused pages.
GA4, GSC, attribution and turning data into roadmap decisions.
Honest side-by-side breakdowns of popular SEO platforms.
Tool catalog
96 tools, organized by SEO discipline. All run in your browser — nothing is uploaded.
Text & Content (10)
Count words, characters, sentences, paragraphs and reading time live.
Live character count with progress bars for Twitter, meta and SMS limits.
See every keyword's count and density percentage, with stop words removed.
Highlight repeated words and list how many times each appears.
Convert text to UPPER, lower, Title, Sentence, aLtErNaTiNg and inverse case.
Delete repeated lines from a list and see how many were removed.
Turn any title into a clean, URL-friendly slug as you type.
Flesch Reading Ease and Flesch-Kincaid grade with a plain-English label.
Count sentences plus average, longest and shortest sentence length.
Estimate reading time at slow, average and fast speeds plus speaking time.
Meta & On-Page (10)
Build a complete <head> meta tag block including OG and Twitter tags.
Check title length, pixel width, and get a live Google SERP preview.
Validate description length with a SERP preview and ideal-length guidance.
Generate Facebook/LinkedIn Open Graph meta tags for rich social sharing.
Build Twitter Card meta tags for summary, large image, or app cards.
Create a clean robots.txt with allow, disallow, crawl-delay and sitemap.
Generate a valid XML sitemap from a list of URLs in seconds.
Generate a properly-formatted <link rel="canonical"> tag.
Create hreflang link tags for international and multilingual SEO.
Paste any HTML and audit title, meta, canonical, headings and alt tags.
Schema & Structured Data (10)
Generate Article JSON-LD structured data for blogs and news pages.
Generate Product JSON-LD with offer, price, availability and ratings.
Build FAQPage JSON-LD for rich snippets in Google search results.
Generate BreadcrumbList JSON-LD for better SERP breadcrumb display.
Generate LocalBusiness JSON-LD with address, hours and contact info.
Build Event JSON-LD with venue, dates and ticket offers.
Generate Recipe JSON-LD with ingredients, steps and times.
Generate Organization JSON-LD with logo, contact and social profiles.
Generate Person JSON-LD for author bios and personal pages.
Generate VideoObject JSON-LD for richer video search results.
Technical SEO (10)
Trace every hop in a URL's redirect chain with status codes for each step.
Validate an XML sitemap for syntax, size, duplicates and protocol compliance.
Test whether a specific URL is allowed for a given user-agent.
Check a domain's SSL certificate, issuer and expiry date.
Check viewport, font sizes, fixed widths and other mobile-friendliness signals.
See whether crawlers can reach a page based on robots.txt and meta directives.
Audit a page for noindex, canonical, title, description and other index signals.
Analyze internal vs external links, anchor text and nofollow on any page.
Interactive checklist covering LCP, INP and CLS optimization wins.
Checklist of proven page speed wins across images, JS, CSS, caching and fonts.
Content SEO (10)
Generate 10 click-worthy, SEO-friendly title tag options for any keyword.
Generate 5 unique meta description options scored against the 140–160 char sweet spot.
Group a long keyword list into topical clusters using shared word stems.
Classify keywords as Informational, Commercial, Transactional or Navigational.
Generate a structured content brief writers can pick up and run with.
Generate a complete H1/H2/H3 outline for any topic in seconds.
Generate common FAQs for a topic plus ready-to-paste FAQPage JSON-LD.
Score your content on Experience, Expertise, Authoritativeness and Trust.
Generate a pillar + cluster content plan to dominate a topic.
Spot where to add internal links inside an article based on your existing pages.
AI SEO & GEO (6)
Audit your content for Generative Engine Optimization across structure, citations and AI accessibility.
Score a content block on how likely ChatGPT, Perplexity and Gemini are to cite it.
Check whether GPTBot, Google-Extended, Perplexity and Claude can crawl and understand a page.
Interactive AEO checklist for question targeting, snippet formatting and schema.
Build a clean Q&A snippet sized for ChatGPT / Perplexity citation.
Make sure every page type ships the structured data AI engines look for.
Local SEO (4)
Full audit checklist for profile, photos, reviews and posts on Google Business Profile.
Detect inconsistent name, address and phone across your local citations.
Generate 20+ local keyword variations for any service in any city.
Tiered checklist of the local citations every business should claim.
Link Building (4)
Classify a list of anchors as branded, exact, partial, generic or naked URL with over-optimization warnings.
Evaluate any backlink offer against authority, placement and risk signals.
Score how topically relevant a linking page is to your target page using shared keywords.
Generate a polite, non-spammy broken-link outreach email in seconds.
URL & Domain (9)
See your public IP plus location, ISP and timezone instantly.
Look up any IPv4 or IPv6 address: location, ISP, ASN and timezone.
Query A, AAAA, MX, TXT, NS, CNAME and more via Google's DNS-over-HTTPS.
Look up registration data, registrar and dates for any public domain.
Break any URL into protocol, host, path, query parameters and hash.
Fetch and inspect HTTP response headers for any URL.
Find out how old a domain is using its WHOIS creation date.
Follow redirects for any URL and see the final destination.
Generate a downloadable QR code for any text or URL.
Word & Fun (9)
Generate random English words for games, names or brainstorming.
Find every word that can be made from a set of letters.
Check if any word or phrase reads the same forwards and backwards.
Reverse text by character or by word with one click.
Translate English to Pig Latin word-by-word.
Encode or decode text using the classic ROT13 cipher.
Convert between text and 8-bit binary in both directions.
Translate between text and Morse code instantly.
Unscramble a random English word — a quick word puzzle for breaks.
Code & Technical (14)
Format, validate and minify JSON with helpful error messages.
Convert a JSON array of objects into a clean CSV file.
Strip comments and whitespace from HTML to reduce file size.
Compact CSS by removing whitespace, comments and trailing semicolons.
Quickly strip comments and whitespace from JavaScript source.
Encode text to Base64 or decode Base64 back to plain text.
Percent-encode or decode strings for safe use in URLs.
Convert special characters to safe HTML entities and back.
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes in your browser.
Generate v4 UUIDs in bulk using the crypto API.
Test regular expressions live and inspect each match with capture groups.
Pick a color and see HEX, RGB and HSL values side-by-side.
Generate placeholder paragraphs, sentences or words for mockups.
Generate strong random passwords with crypto-grade randomness.