Free browser-based SEO tools for titles, meta descriptions, SERP previews, robots.txt, sitemaps, schema, and canonical URLs.
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May 15, 2026 - HTML
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serp-preview
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SERP preview, Open Graph, Schema.org JSON-LD, QR codes, UTM builder, robots.txt and GST — free, browser-only. MIT.
sitemap schema-org robots-txt json-ld client-side utm-builder seo-tools qr-code-generator free-tools serp-preview
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Aug 5, 2026 - HTML
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