SEO
Schema markup generator
Build FAQ, HowTo, Article, Product, LocalBusiness, Breadcrumb, and Organization JSON-LD.
Build clean, standards-compliant HTML meta tags for your website's <head> section. Features real-time character counters for optimal title (~60 chars) and description (~155 chars) lengths to prevent search result truncation, configurable robots indexing rules, canonical links, responsive viewport tags, theme colors, and a live Google search result SERP preview. Everything is generated client-side without sending data to any server.
Runs locally in browser · Zero server upload · Private & fast
Absolute HTTPS URL without tracking query parameters.
Standard responsive scaling directive.
Mobile browser toolbar & UI tab accent color.
<meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Plaintools — Browser-Only Tools & Private Utilities</title> <meta name="description" content="Fast, private browser utility shed where files, tokens, and data never leave your device. Zero server uploads and zero tracking."> <meta name="robots" content="index, follow"> <link rel="canonical" href="https://plaintools.io"> <meta name="theme-color" content="#0f172a"> <meta name="author" content="Plaintools"> <meta name="keywords" content="developer tools, browser utilities, private tools, offline converter">
Standard marketing page meta tags
Title: 'Acme Cloud — Fast Serverless Databases' (42 chars), Description: 'Deploy distributed Postgres databases globally with single-digit millisecond latency.' (88 chars), Canonical: 'https://example.com/databases', Robots: 'index, follow'. Emits clean, copy-ready HTML.
SEO
Build FAQ, HowTo, Article, Product, LocalBusiness, Breadcrumb, and Organization JSON-LD.
SEO
Generate Open Graph and Twitter Card meta tags with live social preview cards.
SEO
Generate RFC 9309 robots.txt files with allow/disallow paths, bot groups, sitemaps, and crawl delays.
SEO
Generate HTML link tags, XML sitemap snippets, and HTTP headers for multilingual and multi-regional hreflang SEO.
SEO
Generate clean, valid XML sitemaps compliant with Sitemaps.org 0.9 from a plain text list of URLs. Zero crawls, client-side.
SEO
Add source, medium, campaign, term, and content parameters to a URL you already own.
SEO
Turn a title into a lowercase URL slug, with stop words stripped and unicode transliterated.
SEO
Build live JSON-LD for FAQ, HowTo, Article, Product, LocalBusiness, Breadcrumb, and Organization.
SEO
Convert any image into PNG favicons (16×16, 32×32, 48×48), favicon.ico, and Apple touch icons.