About this collection
Tools for preparing, checking and previewing technical SEO and sharing metadata. 10 free tools.
SEO & Web
Tools for preparing, checking and previewing technical SEO and sharing metadata.
UTM Builder
Build a trackable UTM URL from source, medium, campaign and optional fields.
Meta Title & Description Preview
Measure SEO title/meta-description length and view a SERP-style preview.
robots.txt Generator
Generate a basic robots.txt from user-agent, allow/disallow and sitemap inputs.
Sitemap XML Generator
Generate a simple sitemap.xml from a list of URLs.
Readability Calculator
Estimate readability indicators from words, sentences and syllables.
Color Contrast Checker
Calculate WCAG contrast ratio between two HEX colors.
Open Graph Preview
Preview an approximate social sharing card from title, description, image URL and page URL.
Keyword Density Calculator
Count keyword/phrase occurrences and estimate density within text.
Canonical URL Generator
Generate a normalized canonical link tag from a page URL.
hreflang Generator
Generate hreflang and x-default link tags from language/URL mappings.