Meta Tag & Robots.txt Studio

Generate <head> meta, OG/Twitter cards & robots.txt with live previews.

Free meta tag generator: build HTML head tags, Open Graph & Twitter cards, plus a robots.txt file with live SERP and social previews. Runs in your browser, no…

About Meta Tag & Robots.txt Studio

Meta Tag & Robots.txt Studio is a free, browser-based tool that builds three SEO essentials from one page: a complete HTML <head> block (title, meta description, canonical, theme-color, Open Graph and Twitter Card tags), a valid robots.txt file, and a 1200×630 social share image — each with a live preview. The meta tab shows a Google result preview and a social card, length meters for the 50–60 char title and 120–160 char description, and an optional "generate copy" feature that drafts a title and description from a topic using your own local AI model. Everything runs entirely in your browser — meta tags and robots.txt are built locally, the OG image is rendered on a canvas, nothing is uploaded, and there is no signup.

How to use Meta Tag & Robots.txt Studio

  1. Pick a tab at the top: 'Meta tags', 'robots.txt', or 'OG image'.
  2. On Meta tags, fill in page title, meta description, canonical URL, site name, OG image URL, author, theme color, OG type (website/article) and Twitter card (summary/large), watching the length meters and the live Google + social-card previews.
  3. Optionally type a topic into the 'Generate title & description from a topic' box and click Generate to have your local AI model draft the copy, then review and tweak it.
  4. Copy the generated <head> block or click 'Download .html' to save meta-tags.html.
  5. On the robots.txt tab, choose a quick preset (Allow all, Block all, Block /admin & /private, Googlebot only) or add user-agent groups with Allow/Disallow paths, plus optional Sitemap URLs and a Crawl-delay.
  6. Copy the robots.txt output or click 'Download robots.txt', then serve it at your site root.
  7. On the OG image tab, set the headline, subtext, theme (Dark/Light/Brand gradient) and headline font, then 'Download PNG' and 'Copy OG tags' to wire up the og:image/twitter:image tags.

Frequently asked questions

Is my data uploaded to a server?
No. The meta-tag, robots.txt and OG-image builders run entirely in your browser with no network requests, and the OG image is rendered on a local canvas — nothing is uploaded. The optional 'generate copy' feature uses your own local AI model, not a remote service.
Is it free and do I need an account?
Yes, it's completely free with no signup, account, or watermark.
What tags does the generated <head> include?
It outputs <title>, meta description, author, theme-color and a canonical link, plus a full set of Open Graph tags (og:title, og:description, og:type, og:url, og:image, og:site_name) and Twitter Card tags (twitter:card, twitter:title, twitter:description, twitter:image, twitter:site). Empty fields are omitted, and all values are HTML-escaped.
What size is the social share image and how do I use it?
It renders at 1200×630 — the size X, LinkedIn, Slack and Facebook use for link previews — using your site name and theme color, with Dark, Light or Brand-gradient themes and a choice of headline font. Download the PNG, host it yourself, then set its public URL as your OG image; 'Copy OG tags' gives you the og:image/twitter:image tags that point at it.
Does the robots.txt actually block crawlers?
No — robots.txt is advisory only; it requests rather than enforces crawler behavior, and it must be served at your site root (e.g. https://example.com/robots.txt) to take effect. The tool supports multiple User-agent groups with Allow/Disallow rules, presets like 'Googlebot only', one or more Sitemap lines, and an optional numeric Crawl-delay.
How do the title and description length meters work?
They count visible grapheme clusters (so emoji and combining marks count as one) and flag the title as 'good' at 50–60 characters and the description at 120–160 characters. The Google result preview truncates to roughly 57 title and 155 description characters to match what actually shows in search results.

People also search for

Meta Tag & Robots.txt Studio is also known as meta tag generator, open graph tag generator, robots.txt generator, html head meta tags, twitter card generator, seo meta tags maker, social share preview generator.