SEO Tools
Free SEO tools for developers: generate robots.txt, XML sitemaps, schema markup, Open Graph tags and UTM links, and preview Google snippets in your browser.
Crawling & indexing
Robots.txt Generator
Create a robots.txt file with rules per crawler, sitemap links and presets for WordPress or blocking AI bots, then test any URL against it in your browser.
XML Sitemap Generator
Generate an XML sitemap from a list of URLs or paths: duplicates removed, special characters escaped, lastmod dates added and big lists split into an index.
Rich results & social
Schema Markup Generator
Generate JSON-LD schema markup for FAQ, Article, Product, Organization, Local Business, Breadcrumb and Event pages, with checks for the fields Google requires.
Open Graph Generator
Generate Open Graph and Twitter Card meta tags and preview how your link looks on Facebook, X, LinkedIn, WhatsApp and Slack before you share it. Copy the HTML.
Search & campaigns
SERP Preview Tool
Preview your page title and meta description in Google desktop and mobile results. Pixel-width checks show where Google cuts the text off before you publish.
UTM Builder
Build campaign URLs with UTM parameters for Google Analytics: presets for ads, social and email, bulk links for many pages, and a parser for existing links.
About seo tools tools
These SEO tools cover the technical files and tags a site needs before search engines and social networks can read it properly: a robots.txt that lets the right crawlers in, an XML sitemap that lists every page worth indexing, JSON-LD structured data for rich results, and Open Graph tags that turn a shared link into a proper card.
Each tool writes standard output you can paste straight into your project, and checks it against the published rules: Google's robots.txt matching (longest rule wins, * and $ wildcards), the sitemap protocol's 50,000-URL limit, the properties Google lists as required for each rich result, and the pixel widths at which search results cut titles and descriptions off. Nothing you type is sent to a server.