SEO Tools
SEO and marketing tools
Optimize your website for search engines. Analyze, improve, and track your SEO performance.
All SEO Tools
Slug Generator
Convert any text to clean, SEO-friendly URL slugs with diacritics stripping, custom separators, and bulk mode
UTM Builder
Build trackable campaign URLs with UTM parameters for Google Analytics, GA4, and other tracking tools
Favicon Generator
Generate a complete favicon bundle from an image, text, or emoji: multi-size .ico, PNG, Apple touch icon, manifest, and HTML snippet
Open Graph Preview
Preview how a URL appears on Facebook, LinkedIn, Twitter, Slack, and Discord, with a checklist for missing OG and Twitter card tags
Schema Markup Generator
Generate valid JSON-LD schema markup for Article, Product, Organization, LocalBusiness, BreadcrumbList, FAQPage, Event, Recipe, VideoObject, WebSite, and WebPage: Rich Results-ready.
Hreflang Generator
Generate hreflang link tags and XML sitemap fragments for international sites, with BCP 47 validation, x-default support, and reciprocity checks.
Meta Description Generator
Write SEO meta descriptions with live character and pixel-width counts plus Google desktop, Google mobile, and Bing truncation previews. Optionally fetch and edit an existing description from a live URL.
Robots.txt Tester
Test whether a list of URLs are allowed or blocked by a robots.txt file, across multiple user-agents. RFC 9309-compliant matching with rule and line attribution. Paste content or fetch from any domain.
XML Sitemap Validator
Validate XML sitemaps against the sitemaps.org schema. Checks URL count, file size, lastmod ISO 8601, changefreq enum, and priority range. Recursively validates sitemap-index files.
Schema Markup Validator
Validate JSON-LD, Microdata, and RDFa schema markup against Google Rich Results criteria. Paste HTML or JSON-LD, or fetch from any URL: get per-block required-field reports.
HTML Meta and Heading Extractor
Extract every meta, title, link, canonical, and hreflang tag from an HTML page, or analyze the H1-H6 heading outline with accessibility flags. Paste HTML or fetch any URL.
HTTP Header Checker
Inspect every response header from any URL: security (HSTS, CSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy, Permissions-Policy, COOP/COEP/CORP, cookie flags), performance (Cache-Control, ETag, compression), and the full redirect chain.
Canonical URL Generator
Build the canonical URL for any page and get a drop-in <link rel="canonical"> snippet. Lowercases the host, strips default ports, removes UTM/tracking params, forces HTTPS, and de-duplicates query parameters.
URL Normalizer
Bulk-normalise URLs against RFC 3986: lowercase scheme/host, strip default ports, remove dot segments, canonicalise percent-encoding, dedupe and sort query parameters, and optionally strip tracking parameters.
HTML Link Extractor
Extract every link from any HTML page: anchors, images, iframes, scripts, stylesheets, and meta canonical/og:url. Paste HTML or fetch a URL, get a categorised table with internal vs external counts and CSV export.
CSP Generator
Build a Content-Security-Policy with a per-directive visual editor. Outputs the header form and the <meta http-equiv> form, with live evaluation against Google CSP Evaluator heuristics.
CSP Evaluator
Audit a Content-Security-Policy for unsafe directives, wildcards, missing object-src/base-uri, weak nonces, and other XSS escape hatches. Paste a policy or fetch a URL: get severity-grouped findings with remediation.
CSP Nonce & Hash Generator
Generate cryptographically-random CSP nonces and SHA-256/384/512 hashes for inline <script> and <style> sources. Bulk-hash several inline snippets at once.
Robots.txt Generator
Build a robots.txt file with a per-rule editor: pick user-agents, Allow/Disallow patterns, crawl-delay, sitemaps, and the optional host directive. Three starter presets and live validation.
XML Sitemap Generator
Build a sitemaps.org-conformant XML sitemap from a URL list. Auto-paginates at 50,000 URLs or 45 MB, generates a wrapping sitemap-index, downloads as a single file or a multi-file ZIP.
Robots Meta Generator
Build a <meta name="robots"> tag and the matching X-Robots-Tag HTTP header. Combine noindex, nofollow, noarchive, nosnippet, max-snippet, max-image-preview, max-video-preview, and unavailable_after with per-engine support hints.
Redirect Rules Generator
Generate Apache .htaccess and Nginx redirect snippets from a single rule list. Supports exact, prefix, and regex matches with 301/302/307/308 status codes, query-string passthrough, case-insensitive matching, and CSV import.
What is in SEO Tools
The largest category here, and the most technical: generating and testing robots.txt, building and validating a sitemap, generating schema markup for the main rich result types, building hreflang and canonical tags, previewing how a URL will look as a social card, inspecting HTTP security headers, extracting a page's meta tags and heading outline, and normalising URLs in bulk.
These are the checks that catch the failures nobody notices for weeks. A staging robots.txt that shipped to production. A canonical pointing at the wrong URL. A heading outline that jumps from h1 to h3. A missing Open Graph image that turns every share into a grey box. None of these throw an error; the page just quietly does worse.
The tools that need to fetch a URL do so through a single audited proxy with SSRF protection, byte caps and rate limiting, and log nothing. The rest run entirely in your browser.
Common questions
Do these tools fetch my site, and is that logged?
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Only the ones that must, such as the robots tester, header checker and Open Graph preview. Those requests go through one audited proxy with strict protection against internal address access, a byte cap and a rate limit, and no request data is logged. Everything else is computed in your browser.
Will a robots.txt mistake really de-index a site?
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A blanket Disallow can stop crawling entirely, and the failure is silent: nothing errors, rankings simply decay over the following weeks. That is precisely why testing the file against the URLs you care about before deploying is worth the two minutes.
Which schema types can you generate?
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Eleven of the most used rich result types, including Article, Product, FAQPage, Event, Recipe, LocalBusiness, HowTo and BreadcrumbList, emitted as JSON-LD ready to paste into a page head.
Is a self referencing canonical a problem?
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No, it is the correct default. A canonical that points at the page's own URL tells search engines which address to credit and stops another page claiming yours as a duplicate. The mistake to avoid is a canonical pointing somewhere unintended.