SEO and AI visibility tools, free forever
26 tools, no watermarks. Enter a URL and we do the rest — live crawling, real keyword data, and AI generation on our servers — while the instant checks run right in your browser.
Readability Grader
Real Flesch Reading Ease, Flesch-Kincaid, and Gunning Fog scores on any pasted text.
Open tool →SchemaFAQ / Schema Markup Generator
Turn Q&A pairs into valid FAQPage JSON-LD, ready to paste into your site.
Open tool →WritingMeta Description Generator
Five ready-to-use descriptions with a live character counter. AI-enhance optional.
Open tool →WritingBlog Title Generator
10 titles across proven headline formulas — listicle, how-to, comparison, and more.
Open tool →PlanningBlog Outline Generator
A full H2/H3 skeleton from a keyword — pick how-to, listicle, comparison, or FAQ.
Open tool →PlanningContent Calendar Generator
Set your cadence, drop in topics, and download a real, ready-to-use CSV calendar.
Open tool →TechnicalOne-Page SEO Audit
Paste a page's HTML and get a real check: title, meta, headings, alt text, schema.
Open tool →Research · LiveKeyword Difficulty Estimator
Real search volume, difficulty, CPC, and the live top-10 SERP for any keyword — plus an instant heuristic estimate.
Open tool →Research · LiveBacklink Checker (Lite)
Live referring domains, total backlinks, and domain rank for any domain — or analyze your own link export.
Open tool →AI VisibilityAI Content Score Checker
A real structure and citability score — direct answers, headings, data points, readability.
Open tool →AI Visibility · LiveAI Visibility Checker
A live check of whether AI assistants actually mention your brand for real buyer questions — no API key needed.
Open tool →AI Visibility · LiveAI Overview Simulator
See a live, simulated AI answer to a real question using your article as the source.
Open tool →ResearchKeyword Cannibalization Checker
Paste URLs and target keywords to find your own pages competing against each other.
Open tool →Link BuildingLink Opportunity Finder
Enter a niche and get real Google search operators for guest post and backlink prospects.
Open tool →AI VisibilityAI Crawlability Checker
Paste robots.txt and see if GPTBot, ClaudeBot, and PerplexityBot are allowed or blocked.
Open tool →AI Visibility · Livellms.txt Generator
Enter your URL and get a complete llms.txt generated from your site's real pages — or build one manually.
Open tool →PlanningContent Cluster Generator
Turn a pillar topic into a full pillar + subtopic map for building topical authority.
Open tool →ResearchContent Gap Analyzer
Paste your topics and a competitor's to find what they cover that you don't.
Open tool →WritingSERP Preview Tool
See exactly how your title and meta description will look in Google, desktop and mobile.
Open tool →WritingOpen Graph Preview
Preview how your page looks when shared on Facebook, LinkedIn, or Slack before publishing.
Open tool →TechnicalHeading Structure Analyzer
Paste HTML and get a visual H1–H6 tree with warnings for skipped levels and empty headings.
Open tool →TechnicalRobots.txt Generator
Build a valid robots.txt with custom rules, sitemap link, and explicit AI bot controls.
Open tool →TechnicalRobots.txt Validator
Test any URL path against your robots.txt to see if it's allowed or blocked for a crawler.
Open tool →TechnicalXML Sitemap Validator
Paste sitemap.xml and check structure, URL count, lastmod dates, and common errors.
Open tool →AI VisibilityAI Content Detector & Humanizer
A transparent heuristic AI-likelihood score, plus an optional AI humanizer rewrite.
Open tool →TechnicalBroken Link Checker
Paste HTML or a URL list and find links that appear unreachable, checked live.
Open tool →Why these free SEO tools exist
Most "free SEO tools" online are lead-gen bait — a limited demo designed to push you toward a paid signup after two or three uses. These 26 aren't that. The instant checks run on real formulas and transparent heuristics directly in your browser, with no email gate and no watermark on the output. And the powered features don't fake it either: enter a URL and we actually crawl it, keyword numbers come from live search data, and the AI features run real models on our own infrastructure — no API key to paste, just a free sign-in so we can cover the compute.
They cover three halves of modern SEO: the classic on-page mechanics (readability, meta descriptions, schema, audits, keyword difficulty, backlinks), the technical layer that keeps a site crawlable (robots.txt, sitemaps, heading structure, broken links, keyword cannibalization), and the newer discipline of making content citable by AI answer engines (AI crawlability, llms.txt, structure scoring, brand visibility, AI Overview simulation).
How to use these tools together
- Start with the Keyword Difficulty Checker and Content Gap Analyzer to sanity-check a topic and find real gaps before committing to it.
- Map out a full topic with the Content Cluster Generator, then build each article's shape with the Blog Outline Generator and a headline with the Blog Title Generator.
- Before publishing, run the Readability Checker, the AI Content Score Checker, the Heading Structure Analyzer, and the One-Page SEO Audit to catch structural gaps.
- Add a meta description, check the SERP Preview and Open Graph Preview, and add FAQ schemaif the page has a Q&A section.
- Keep the site healthy with the Keyword Cannibalization Checker, Broken Link Checker, Robots.txt Validator, and XML Sitemap Validator.
- After it's live, check real visibility with the AI Visibility Checker, AI Overview Simulator, and AI Crawlability Checker.
Frequently asked questions
Are these free SEO tools actually free, or is there a trial limit?
All 26 tools are free — no credit card, no watermarks. The instant checks (readability, schema, previews, robots.txt building and more) run right in your browser with no account at all. The powered features — live keyword data, real backlink numbers, server-side crawling, and AI generation — run on seosorted's own infrastructure, so they ask for a free sign-in and come with a generous daily allowance.
Do I need to create an account to use these SEO tools?
Not for the instant, in-browser checks. For the automated features — enter a URL and we crawl it, generate with AI, pull live keyword or backlink data — a free account is required so we can cover the crawling and AI costs and prevent abuse. No credit card, and paid plans simply raise the daily allowance.
Do I need my own OpenAI or Anthropic API key?
No. Every AI-powered feature — the AI Visibility Checker, AI Overview Simulator, humanizer rewrites, and all the generators — runs on seosorted's own AI infrastructure. You never paste an API key, and what you run is processed only to produce your result.
Start building your content library in under 8 minutes.
Your competitors are publishing every week. Every week you don't is a week of organic traffic going to them.
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