SEO & Marketing
Free, browser-based SEO and marketing utilities - preview search snippets and social cards, generate meta and schema markup, build UTM links, and audit on-page content. Nothing you paste is uploaded.
- Heading Structure Analyzer - Outline & SEO CheckerPaste any HTML to extract and visualize the H1–H6 heading outline. Flags multiple H1s, skipped levels, and empty headings for SEO review.
- Keyword Density Analyzer - Check Word Frequency & TFAnalyze any body of text for word frequency, keyword density %, and n-gram patterns. Toggle stop-word filtering, pin target keywords, and see a visual bar chart.
- Meta Tag Generator - OG & Twitter Card BuilderGenerate complete HTML <head> meta tags: title, description, canonical, Open Graph, and Twitter Card. Preview and copy the ready-to-paste code block. All processing is local.
- Open Graph Preview - Social Card SimulatorPreview how your page looks when shared on Facebook, X (Twitter), LinkedIn, Discord, and Slack. Paste your page HTML or fill in the fields manually. No network requests.
- Schema Markup Generator - JSON-LD Structured DataGenerate valid JSON-LD schema markup for FAQPage, HowTo, Article, Product, LocalBusiness, BreadcrumbList, and more. Form-driven, inline validation, pretty/minified toggle.
- SERP Preview - Google Snippet SimulatorPreview how your page will look in Google search results. See real pixel-width title and description limits for desktop and mobile. Instantly check truncation.
- Title Tag Checker - Bulk Pixel-Width ValidatorPaste multiple page titles (one per line) to instantly see their pixel widths, pass/fail against Google thresholds, and optionally append a brand suffix.
- UTM Builder - Campaign URL Builder & QR CodeBuild UTM-tagged campaign URLs for Google Analytics. Round-trips existing UTM params, adds optional lowercase normalization, generates a QR code, and copies as plain URL or Markdown link.