Open source · Billion Web Studio
Free website tools for SEO and performance
Small, dependency-free tools we use when we build and audit websites. Each one runs in your browser, nothing is sent anywhere, and the code is MIT licensed.
SERP snippet preview
See how a Google result could show your title tag and meta description on desktop and mobile, measured in pixels, with plain fixes.
Open the tool → PerformanceCore Web Vitals gauges
Drag LCP, INP and CLS against Google's published thresholds and see what to fix for each band.
Open the tool → DesignSearch to enquiry hero
A hero animation in pure HTML, CSS and JavaScript that follows a buyer from a search to a sent enquiry. Respects reduced motion.
Open the demo →Who made these
Billion Web Studio is a website development company that builds fast, SEO ready websites for service businesses, clinics, law firms, manufacturers and B2B companies in the USA, the UK, the UAE, Canada, Australia and India. Every site ships with technical SEO, schema markup, Core Web Vitals targets and lead tracking.
See the results on real projects in our website development case studies, or read how to write a meta title that Google shows in full.