Free & open-source, from KPThink

Open-source tools. Actually working.

KPThink builds production-grade software for clients. These are tools we built for ourselves on the side — and we're giving them away.

Try one right now. No download, no signup, no screenshot standing in for the real thing.

Live on this page

Domain Name Finder

Paste a GitHub repo or describe your project. Get real, DNS-and-RDAP-verified available domain names back — checked live, right here.

Try it now →

Runs on your machineWindows desktop

Lead Finder

Scrapes Google Maps for local businesses — name, phone, site, rating, and a discovered email when public — straight to CSV, Excel, or PDF.

Get it running locally →

Coming soonWindows · macOS · Android

Passnue

A private vault for passwords, accounts and secrets. Encrypted on your own device with AES-256-GCM — no cloud, no sign-up, no tracking.

See the app →

About

Built by KPThink

KPThink is a software studio that builds production-grade tools for clients — the kind that have to actually work, on day one, in front of real users.

These projects started as internal tools we needed for our own work. We open-sourced Domain Finder and Lead Finder because good software shouldn't sit in a private repo, and we give Passnue away free — this site is the proof they hold up: go try one.

FAQ

Common questions

Are these actually free?

Yes. Domain Finder and Lead Finder are MIT-licensed and free to use, fork, or self-host. Passnue (coming soon) will be free to download and use, but its source code is not open. No paid tier, no account required.

Can I self-host or modify them?

Domain Finder and Lead Finder are open source under MIT. Clone them, change what you need, run them wherever you want. Passnue is closed source.

Do you take on client work?

Yes — KPThink builds production-grade software for clients. These tools are a sample of that standard, built for ourselves and open-sourced.

Need something like this built for your business?

KPThink takes on client projects — same standard of craft, built around what you actually need.

Talk to KPThink