Category
SEO & Web Tools & Calculators
Webmaster and SEO utilities that generate production-ready snippets — meta tags, social cards, robots.txt, sitemaps, and structured data — plus URL inspection tools. Everything runs locally in your browser.
SEO and webmaster tools here generate production-ready snippets — meta tags, Open Graph/Twitter cards, robots.txt, sitemaps, and URL utilities. Output is plain text you paste into your own files; generation runs locally.
Most used in SEO & Web
Meta Tag Generator
Generate copy-paste-ready meta tags for your pages with a live Google-style search result preview and length guidance.
Open Graph & Twitter Card Generator
Generate Open Graph and Twitter/X Card tags so your links unfurl with the right title, description, and image on every social platform.
Robots.txt Generator
Build a correct robots.txt file from presets and rules — including crawl-delay, sitemap declaration, and per-bot policies — ready to upload.
Canonical URL Generator
Normalize any URL into its canonical form and generate the matching <link rel="canonical"> tag with your preferred www/HTTPS/slash policy.
Structured Data (Schema.org) Generator
Generate valid JSON-LD structured data for six common schema types — FAQ, Article, Product, Organization, Local Business, and Breadcrumbs.
URL Parser & Inspector
Split any URL into its components — protocol, host, port, path, query parameters, and fragment — with every parameter decoded.
UTM Campaign URL Builder
Create properly formatted UTM tracking links for Google Analytics — with naming-convention hints and a live preview of the final URL.
All SEO & Web
SERP Snippet Preview
Simulate the Google search result for your title, URL, and description — with truncation warnings based on real display limits.
XML Sitemap Generator
Turn a list of URLs into a valid XML sitemap with per-URL priority, changefreq, and lastmod — validated and downloadable.
Twitter/X Card Preview
See how a link will render as a card on X, Facebook, and LinkedIn before you publish — based on your OG and Twitter meta tags.
What each generator produces
- Meta Tag Generator — title, description, canonical, and viewport tags with length warnings (titles truncate around 600 px / ~60 characters).
- Open Graph / Twitter Card generator — og:title, og:image, and twitter:card markup for link previews.
- robots.txt generator — crawl directives; remember robots.txt controls crawling, not indexing (that is controlled per-page with meta tags).
- Sitemap generator — a valid XML sitemap listing URLs you provide; submit it in Search Console rather than relying on discovery.
Details that matter
Canonical tags should be absolute URLs matching your preferred domain (https, with or without trailing slash — pick one). An og:image works best at 1,200×630 and must be an absolute URL. Sitemaps have a 50,000-URL / 50 MB limit per file; larger sites split them with a sitemap index.
Common mistakes
- Blocking CSS/JS in robots.txt on a modern site — it prevents rendering-based evaluation.
- Pointing canonical at a URL that itself redirects, chaining signals instead of consolidating them.
- Generating a sitemap but never submitting it, then assuming indexing follows automatically.