Free, browser-based SEO and webmaster tools. Everything runs locally in your browser — no uploads, no backend, no account. Built by HELPERG for operators, founders, and webmasters.
Each tool processes your input entirely on this page. Nothing you paste leaves your browser.
Extract title, description, canonical, robots, Open Graph, and Twitter tags from pasted HTML — with warnings.
Open tool →Preview generic, X/Twitter, and LinkedIn-style social cards from manual metadata input.
Open tool →Check User-agent groups, Allow/Disallow rules, Sitemap entries, and test a path (simplified).
Open tool →Inspect sitemap XML: URL count, duplicates, invalid-looking URLs, HTTPS usage, lastmod coverage.
Open tool →Build campaign tracking URLs with utm_source/medium/campaign and optional term/content.
Open tool →Check JSON-LD syntax, @context, @type, and basic fields (simplified structured-data check).
Open tool →Explore more: products · documentation · articles · about HELPERG · changelog · WebmasterID analytics · WebmasterID docs.
These tools are great for a quick check. For continuous, owned, privacy-conscious visibility, explore WebmasterID.