ListingResearchOS

One builder. Browser-native tools.
No subscriptions, ever.

Every product in this shop started as a tool I actually wanted. A marathon pace calculator that knows where I am in training. A course launch OS that does real revenue math, not vague forecasts. A job search tracker that treats the hunt like a project, not a prayer.

The tools that came close either cost $12/month, required me to join a workspace, or died the moment I lost internet. I wanted something I could buy once and trust forever.

So I built them as single HTML files. Open in Chrome, Edge, Safari, or Firefox. Data autosaves to localStorage — nothing leaves your device unless you choose to export a backup JSON. No account. No analytics. No server.

The design language is deliberate: warm cream backgrounds, Fraunces display type, DM Sans body copy. Clean enough to think in, structured enough to work in.

Builder note

I am Marc — a 1-man AI-first operator. I run this shop as part of a larger system for building and shipping digital products fast. The dashboards in this shop are the tools I actually use, listed publicly because other people need them too.

Every dashboard has been tested personally. The purchase is the same product. The price is a fair one-time exchange for something that should last you years.

Browse the full shop on Etsy →

Philosophy

No subscription
You pay once. The file is yours. Five years from now, it still works.
No cloud required
Your data lives in your browser. Export a JSON backup whenever you want a portable copy.
No installation
Double-click the HTML file. It opens. That is the entire setup process.
No bloat
Each dashboard is one file, 45–60 KB. It loads instantly on any device.

Free download

The Etsy Listing SEO Checklist

The exact title, tag, image, and pricing checks the top digital shops run on every listing — one page, no fluff. Get it free, plus the occasional new-dashboard drop.

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