Paste your robots.txt and instantly see which of 18 AI crawlers are allowed or blocked on your site.
AI · NewBuild a robots.txt that controls 28+ crawlers — AI bots, search engines, SEO tools — with one-click presets.
AIPaste a robots.txt plus a URL path and user-agent. Get instant Allowed or Blocked verdict with the exact matching rule. Follows RFC 9309 / Google spec.
NewGenerate an llms.txt file that tells AI assistants what your site is about and which pages matter most.
AICompare two versions of an llms.txt — or any plain-text file — and see exactly what changed line by line. Side-by-side or changed-only view.
NewBuild complete meta + Open Graph + Twitter Card HTML. Live SERP and social-platform previews. Character counters tied to search-result truncation limits.
NewPreview how your page is likely to appear in Google search results — mobile and desktop. Pixel-width measurement.
NewGenerate structured data markup for your pages — Article, Product, FAQ, LocalBusiness, and more.
Paste FAQ text or build Q&A row-by-row. Get valid FAQPage JSON-LD ready to drop into your <head>. Live preview, validates against the FAQPage spec.
NewPaste a list of URLs and get a valid sitemap.xml with optional lastmod, changefreq, and priority for each.
NewBuild campaign tracking URLs for your analytics platform. Source, medium, campaign, term, content. Recent links saved locally.
NewLive character + pixel-width counter for titles and meta descriptions. Color-coded vs the desktop and mobile rendering limits used by search engines.
NewBuild hreflang tags for multilingual or multi-region sites. Validates ISO 639-1 + ISO 3166-1 codes. Exports as HTML, sitemap XML, or HTTP header.
NewPaste old → new URL pairs. Output as Apache .htaccess, nginx, Cloudflare Workers, Cloudflare Pages, or Netlify rules.
Word, character, sentence, paragraph, and syllable counts. Reading time. Six standard text-analysis formula scores.
NewPaste HTML, get a clean H1–H6 outline tree with red flags for skipped levels, multiple H1s, empty or hidden headings. Copy as Markdown.
New103 prefilled product templates plus title and tag generators. No signup.
SellerProduct descriptions for your Shopify store. Minimal style by default.
SellerProfessional-tone descriptions with condition, shipping, returns, and policy fields built in.
SellerNo. Every tool here runs entirely in your browser using JavaScript. The HTML you paste, the URLs you enter, and the output you generate never leave your device. Open the browser dev tools Network tab and confirm — there are no outgoing requests when you use the tools (except loading the page itself).
No signup, no paywall, no email capture. Every tool is free.
Each tool is static HTML, CSS, and JavaScript. The tool runs in your browser and what you type into it stays in your browser.
Yes — see the About page for contact info.