Free tools

Practical tools for
working operators.

Lightweight, useful, free. No signup wall. No email gate. No data collection. Each one was built for my own work first, then released because someone else might find them useful.

What these are

Every tool on this page is a single-purpose utility built around one question: what would I want to use right now if I were facing this problem? They are not SaaS products in disguise. They have no accounts, no dashboards, no usage limits, and no email captures. Type your numbers in. Get an answer. Leave.

If you are an in-house operator at a B2B company, a founder running marketing yourself, or a consultant working through a diagnostic, these are built for the shape of work you actually do. If you are a creative agency or analytics vendor, you are welcome to use them too, with the same terms.

Who they are for

  • Growth marketers at companies between $1M and $100M ARR who need to think clearly about CAC, attribution, budget allocation, and conversion economics without firing up a spreadsheet from scratch.
  • Founders running their own GTM who need quick directional answers before deciding what to spend on, what to cut, or what to fix first.
  • Consultants and advisors who want a clean second opinion on a client's funnel math or content portfolio.
  • SEO and content teams who need keyword combinations, audit frameworks, or robots.txt validation without paying for a full platform.

Frequently asked questions

Why are these tools free?

Because they should be. Everything here is a tool I either built for my own work or wanted to exist and could not find a clean free version of. Free is also the right pricing for a tool that takes 10 seconds to use. There is no signup wall, no email gate, and no upsell to a paid tier hiding behind any of these.

Do you collect my data when I use these?

No. Every tool runs entirely in your browser. The numbers, URLs, and inputs you enter never leave your device. The one exception is the Robots.txt Validator, which can optionally fetch a public robots.txt file from a domain you enter; that fetch is rate-limited and validated server-side, but no user input beyond the domain name is stored.

Can I use the outputs for client work or commercial purposes?

Yes. The outputs (keyword lists, allocation tables, audit scores, exported CSVs) are yours. The tools themselves are not redistributable as your own product, but the data they generate is.

Why no API or pro version?

Because that is the wrong shape for what these are. They are sharpening tools for working operators, not SaaS products. If a tool here becomes more useful as a paid product some day, I will say so honestly. Until then, they stay free and unauthenticated.

Will more tools be added?

Yes, on an irregular cadence. New tools ship when I build them for my own work and decide they would be useful to others. Subscribe to the Tuesday Briefing to hear about new tools as they ship, or check this page periodically.

How do I report a bug or request a feature?

Email rob@robtcase.com. Real humans read every message. Bug reports get prioritised over feature requests, but both are welcome.

Who built these?

Rob T. Case, an operator who writes, based on Vancouver Island, BC. He is Director of Demand Generation at Embroker, president of the performance media agency VonClaro, and the builder of the Exposure Intelligence Lab. The tools reflect the work he actually does.

Hear about new tools as they ship

New tools land here on an irregular cadence. Subscribe to The Tuesday Briefing to get a heads-up when a new one goes live, plus weekly thinking on growth marketing from someone actively building.

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