SEO Tools

Check keyword density and generate robots.txt files, XML sitemaps and schema markup in your browser.

Keyword Density Checker
Find the most used words and phrases in your content and check how often a target keyword appears. Works on plain text or pasted HTML, in your browser.
SEO
StableClient-only
Robots.txt Generator
Build a robots.txt file with allow and disallow rules per crawler, sitemap links and an optional block for AI crawlers. Copy or download the result.
SEO
StableClient-only
Schema Markup Generator
Generate JSON-LD structured data for articles, products, local businesses, organizations, FAQs and breadcrumbs, ready to paste into your page.
SEO
StableClient-only
XML Sitemap Generator
Turn a list of URLs into a valid XML sitemap. Removes duplicates, resolves paths against a base URL and adds optional lastmod, changefreq and priority.
SEO
StableClient-only