SEO & Web Tools
10 toolsFree SEO and web utilities to generate meta tags, preview Open Graph and Twitter cards, build robots.txt, generate JSON-LD schema, audit keyword density, encode HTML, and minify CSS.
Meta Tag Generator
Meta tag generator — build complete SEO title, description, robots, and canonical tags for any page, ready to copy and paste. Free, with no signup needed.
Open Graph Preview
Open Graph preview tool — see exactly how a URL will look when shared on Facebook, LinkedIn, and other social platforms before you publish. Free and instant.
robots.txt Generator
robots.txt generator — build a clean robots.txt file with user-agent rules, allow and disallow paths, and sitemap entries in seconds. Free, no signup needed.
Keyword Density
Keyword density checker — analyze pasted text or page copy for word density, keyword frequency, top phrases, and word counts. Free, runs in your browser.
Schema Generator
JSON-LD schema generator — create structured data for Article, FAQ, Product, Local Business, and other schema.org types. Free, ready to copy and paste.
HTML Encoder
HTML encoder and decoder — escape special characters like &, <, and > into HTML entities, or convert entities back to plain text. Free and instant to use.
Canonical Tag
Canonical tag generator — create a correct rel="canonical" link tag for any URL to prevent duplicate-content issues. Free, instant, and copy-ready output.
Sitemap Generator
Free online XML sitemap generator: paste your URLs and build a valid sitemap.xml with lastmod, changefreq, and priority. Copy or download — no signup.
Twitter Card Preview
Twitter / X card preview — see how your page renders as a summary or summary_large_image card before you share the link. Free, instant, no signup needed.
CSS Minifier
CSS minifier online — strip whitespace, comments, and redundant characters from stylesheets to cut file size. Free, instant, and runs in your browser.
SEO and web hygiene tools for cleaner, more discoverable pages
Search engines and social platforms don't read a page the way a person does; they read the markup around the content — the title, the meta description, the Open Graph tags, the structured data, and the directives in robots.txt. The tools in this category help you write that markup correctly so a page is indexed the way you intend and shows up looking right when someone shares it. Good web hygiene like this rarely makes headlines, but it is what separates a link that earns a click from one that gets skipped.
Meta tags and how your page appears
The title tag and meta description are the text most search engines show in their results, and the Open Graph and Twitter card tags control the headline, image, and summary that pop up when a URL is pasted into a chat or a social feed. Write them deliberately: keep titles within the length that displays without truncation, make each description a genuine summary rather than a keyword list, and always specify an OG image so your link never falls back to a blank grey box. A preview tool lets you see the result before you publish instead of after.
Structured data and crawl directives
Structured data — usually JSON-LD schema — tells engines what a page actually is: an article, a product, a recipe, an FAQ. Marked up correctly, it can unlock rich results with ratings, prices, or expandable questions, but a single malformed property can make the whole block ignored, so generating valid markup matters. robots.txt and canonical tags work the other way: they tell crawlers what to skip and which version of a duplicated URL is the original. Used carelessly they can hide pages you wanted indexed, so it pays to generate them from a tool that produces well-formed output.
Choosing the right tool for the job
Match the tool to the layer you're fixing. If a shared link looks wrong, start with the Open Graph or Twitter card preview. If you want rich results, reach for the schema generator and validate before deploying. If pages are being crawled that shouldn't be, a robots.txt generator gives you a clean, correctly-formatted file. Everything here runs in your browser, so you can draft and check markup for an unreleased site without exposing it anywhere.