31 free SEO tools. Zero sign-up.
Check any website’s SEO, speed and links, find keywords, and generate schema, robots.txt and llms.txt files. No account needed. Paste-in tools run in your browser, so your content stays with you.
Pick a tool, get an answer
Check a live website
5 tools · Enter a URL and we test the real page: SEO, speed, AI readiness and links.Enter any URL for a live SEO check: indexing, redirects, titles, headings, schema, links and more.
Page Speed TestCore Web Vitals and Lighthouse scores from Google for mobile and desktop, explained in plain English.
AI Search Readiness CheckerCan ChatGPT, Claude, Perplexity and Google AI read your site? Check bot access, llms.txt, schema and content.
Broken Link CheckerFind links on any page that return 404s, server errors or redirects, with the anchor text for each.
Backlink VerifierCheck that the pages you earned links on still link to you, and whether those links are followed.
Keywords, content & meta
11 tools · Find keywords, write better titles and descriptions, and check how your copy reads.Hundreds of keyword ideas from Google Autocomplete, grouped into questions, comparisons and buying intent.
Meta Tag CheckerPaste any page HTML and instantly see title, description, OG tags — with character-count grades.
Meta Description GeneratorEnter your keyword and benefit, get several meta descriptions at the right length.
Headline AnalyzerScore blog titles and headlines for length, format, strong words and clarity.
SEO Character CounterLive preview of your SEO title (60 chars) and meta description (160 chars) as they'd appear on Google.
Google SERP PreviewPreview exactly how your page will look in Google search results — desktop and mobile.
Readability CheckerFlesch score, grade level, long sentences and passive voice, highlighted in your text.
Word Counter & Keyword DensityPaste content → word count, reading time, keyword density, sentence count, and readability stats.
Keyword Density CheckerPaste text and see keyword frequency, density percentages, and top phrases.
Content OptimizerPaste your content + target keyword — get readability score, keyword density, heading analysis, and SEO recommendations.
Lorem Ipsum GeneratorGenerate placeholder text for web design mockups — paragraphs, sentences, or words.
Technical SEO
8 tools · Create and validate the files and tags that decide whether Google can crawl and index you.Create a robots.txt with your blocked paths, sitemap and optional rules for AI training crawlers.
robots.txt ValidatorPaste your robots.txt → instant syntax check, crawl directive analysis, and issue detection.
llms.txt GeneratorBuild a valid llms.txt file that points AI tools to your most useful pages.
XML Sitemap ValidatorPaste your XML sitemap and instantly validate structure, URLs, dates, and priorities.
Canonical URL CheckerPaste HTML source to find and validate canonical tags, og:url, and detect conflicts.
Heading Tag CheckerPaste HTML and see your H1-H6 heading hierarchy with issues flagged instantly.
Redirect Chain PlannerPlan and validate redirect chains — detect loops, excessive hops, and generate .htaccess rules.
Indexability CheckerPaste your page HTML to check for indexing issues — noindex tags, canonical problems, robots directives, and more.
Structured data & international
7 tools · Schema, social previews, hreflang and URL helpers.Fill in a form and get valid JSON-LD for Organization, LocalBusiness, Article, Product or FAQ.
JSON-LD Schema ValidatorPaste JSON-LD structured data and validate syntax, @type fields, and required properties.
Open Graph PreviewPreview how your page looks when shared on Facebook, Twitter, LinkedIn, and Discord.
Hreflang Tag GeneratorGenerate correct hreflang link tags for multilingual and multi-region websites.
SEO Slug GeneratorPaste any title → get a clean, SEO-friendly URL slug instantly.
Domain Authority EstimatorEnter what you know about your site (age, backlinks, pages) to get an estimated Domain Strength Score. A self-assessment, not a live metric.
Brand Protection ChecklistEnter your brand name to analyze brand SEO signals — keyword variations, search intent patterns, and brand protection tips.
Three steps, no account
Pick a tool
Content analysis, technical SEO, structured data or international tools.
Enter a URL or paste content
A live page address, or your HTML, text, XML, JSON-LD, title and description.
Get instant results
Scores, issues and recommendations right away. Copy or download the output.
Use them together
Three quick checklists that chain the free tools for common jobs.
Launching a new site
Writing a new post
Before you publish a post
After a site migration
Launching in a new country
Getting found by AI
Monthly health check
Your content stays with you.
Paste-in tools analyze your content right in your browser, so your HTML and copy are never uploaded. Live checkers fetch only the public URL you enter, and we don’t keep the results. We count which tools are opened, anonymously, so we know what to improve.
- No account or email
- No limits on browser tools
- Pasted content never leaves your browser
- Anonymous usage counts only
12 new free tools, live now
Everything we promised in “coming soon” is here, picked from what people search for most.
New · Checks a live URLWebsite SEO Checker
Enter any URL for a live SEO check: indexing, redirects, titles, headings, schema, links and more.
New · Checks a live URLAI Search Readiness Checker
Can ChatGPT, Claude, Perplexity and Google AI read your site? Check bot access, llms.txt, schema and content.
New · Checks a live URLPage Speed Test
Core Web Vitals and Lighthouse scores from Google for mobile and desktop, explained in plain English.
New · Checks a live URLBroken Link Checker
Find links on any page that return 404s, server errors or redirects, with the anchor text for each.
New · Checks a live URLFree Keyword Generator
Hundreds of keyword ideas from Google Autocomplete, grouped into questions, comparisons and buying intent.
New · Checks a live URLBacklink Verifier
Check that the pages you earned links on still link to you, and whether those links are followed.
New · Runs in your browserllms.txt Generator
Build a valid llms.txt file that points AI tools to your most useful pages.
New · Runs in your browserSchema Markup Generator
Fill in a form and get valid JSON-LD for Organization, LocalBusiness, Article, Product or FAQ.
New · Runs in your browserRobots.txt Generator
Create a robots.txt with your blocked paths, sitemap and optional rules for AI training crawlers.
New · Runs in your browserMeta Description Generator
Enter your keyword and benefit, get several meta descriptions at the right length.
New · Runs in your browserHeadline Analyzer
Score blog titles and headlines for length, format, strong words and clarity.
New · Runs in your browserReadability Checker
Flesch score, grade level, long sentences and passive voice, highlighted in your text.
AI-powered tools, free to start
Sign up free to unlock 100+ AI tools that go beyond what browser tools can do: live data, audits and writing.
Questions, answered
Are these tools really free?
Yes. All 31 tools are free with no account and no credit card. Browser tools have no limits. Tools that check a live website allow 6–10 checks per hour per visitor, so the service stays fast for everyone.
Do I need to sign up?
No. Open a tool and use it. Signing up is only needed for the AI-powered tools and SEO Autopilot in the main app.
Is my content private?
Tools you paste into (text, HTML, JSON) run entirely in your browser; nothing is uploaded. Tools that check a live URL fetch that public page from our server and return the result to you; we don’t store the results. We only keep anonymous counts of which tools are opened.
What’s the difference between these and the AI tools?
Free tools give instant, rule-based answers. The AI tools in the app write content, call more data sources and track results over time, so they need an account and have daily limits.
Can I check any website?
Any public website. We don’t scan private addresses, internal networks or password-protected pages. Some sites block automated checks; when that happens the tool tells you.
Can I use these tools for client work?
Yes. Use them as often as you like for your own sites or for clients.
Which tool should I start with?
Start with the Meta Tag Checker and SERP Preview for any page you care about. They catch the most common, easiest-to-fix problems.
Want AI-powered SEO tools?
Sign up free and unlock 100+ AI tools: article generator, keyword research, platform writers for 19 sites, technical audits, AI visibility tracking and more.