Free SEO micro-tools · No signup
Free SEO tools for the fixes you make most.
A farm of fast, ungated utilities for search and AI visibility. Generators, testers and previews you can use in seconds — no email, no trial, no PDF held hostage. Each one solves one job well; when you want the complete picture, the full audit runs all 61 checks on any page.
Directory
Ungated utilities, built for operators and AI crawlers
Check whether GPTBot, ClaudeBot, PerplexityBot, Google-Extended and 10 more AI crawlers are allowed to read your site — and whether you have an llms.txt.
Open tool →MTmeta tag checkerMeta Tag AnalyzerEnter a URL for an instant mini-audit: title, meta description, canonical, robots, viewport, charset, H1s and social tags — each with a pass/warn verdict.
Open tool →SHsecurity headers testSecurity Headers CheckerGrade your HSTS, Content-Security-Policy, X-Frame-Options and other response headers, with a letter grade and copy-ready fixes.
Open tool →LLllms.txt generatorllms.txt GeneratorBuild a clean, valid llms.txt that points AI assistants at your most useful pages. Copy or download it.
Open tool →{}schema markup generatorSchema Markup GeneratorCreate copy-paste JSON-LD for Organization, WebSite, FAQPage and BreadcrumbList, validated as you type.
Open tool →SEGoogle SERP previewSERP Snippet PreviewPreview your title and meta description as a Google desktop and mobile result, with pixel-width truncation warnings.
Open tool →RBrobots.txt testerRobots.txt TesterPaste robots.txt and test crawl access for any path and user-agent, with an AI-bot summary and sitemap list.
Open tool →OGOpen Graph previewOpen Graph PreviewFetch a URL and see Facebook, X and LinkedIn card previews, plus a checklist of missing OG and Twitter tags.
Open tool →HLhreflang generatorHreflang GeneratorBuild reciprocal hreflang link tags with x-default and live validation of every language-region code.
Open tool →Questions
What people ask about these tools
Are these SEO tools really free?
Yes — all nine run without an account, an email address or a trial. Nothing is held back behind a paywall and no report is truncated. The tools are how this site earns attention; the paid product is full-site crawling at deepseoanalysis.com.
Which tool should I use first?
If you want a verdict on a live page, start with the meta tag analyzer or the full audit. If you are publishing something new, the SERP snippet preview and the schema generator save the most rework. For AI visibility, run the AI crawler checker and then generate an llms.txt.
Do the tools send my URL anywhere?
The generators and previews run entirely in your browser. The three that need to see a live page — meta tag analyzer, robots.txt tester, AI crawler checker and security headers checker — fetch it server-side, rate-limited, with private and internal hosts blocked. We store no page content.
What does the full audit add over a single tool?
A tool answers one question. The audit runs 61 checks on the page at once — technical, on-page, structured data, links, Core Web Vitals and AI readiness — then ranks the findings by how much each one costs you and links every finding to a CMS-specific fix.
Need the whole report?
These tools cover slices. The audit covers everything.
Paste any URL and the free SEO Analysis Checker fetches it like a crawler, runs 61 impact-weighted checks across technical SEO, on-page, structured data, links, Core Web Vitals and AI visibility, and streams the report onto your screen in seconds. No signup, ever.
Run a free audit →