Seven free marketing tools, scoped and shipped

The problem

Every B2B marketing calculator I wanted to use had the same shape. Enter your numbers, hand over your email, get a PDF. The tool wasn’t the product. The form was.

I wanted the opposite. Working tools that give you the answer on the page, show the benchmark they’re scoring against, and never ask who you are.

What I built

Nine tools scoped, seven live. An SEO ROI calculator that models pipeline and net retained ARR against 2025 B2B SaaS conversion benchmarks. An FAQ schema generator that outputs valid JSON-LD. An AI citation readiness score that grades content against eight structural signals. A cold email subject line generator segmented by buyer type.

Each one started as a question I’d answered by hand too many times.

How it works

Built on Astro and deployed to Cloudflare Pages. The tools are client-side, so nothing you type is sent anywhere. Benchmarks are hardcoded and cited, which means updating them is a visible change rather than a silent one.

Claude did the heavy lifting on implementation. I did the scoping, the benchmark research, and the copy. That division is the point: the constraint on shipping tools like these was never the code.

What changed

The ROI calculator became the single biggest impression driver on the site. More usefully, the tools do the qualifying that a gate would have done. Someone who runs their numbers and books a call has already made the case to themselves.