Tools

Working demos, kept off the homepage

These pages stay on the domain so old links still work. They are client-side experiments, not a product catalog. If you want this class of tooling built for your team, say so.

Security

Security tools & resources

Curated links I actually use as starting points — frameworks, scanners, and references.

IP API parser

Client-side geolocation lookup with fallbacks. A small example of privacy-aware engineering.

Calculators

Mortgage math is unrelated to security consulting. It stays because people still use it, and because the code is a clean client-side example.

Mortgage calculator

Monthly payment estimate. All math stays in the browser.

Mortgage calculator — advanced

Extra payments, amortization, print-friendly output.

Lab

Unfinished or experimental pages. Useful if you are debugging this site; not a capability pitch.

Ad blocker test

Cosmetic vs network vs script probes, with a control box that must stay visible. No AdSense publisher id.

OWASP / skeleton

Template page used for experiments.

cdnjs lookup

Search libraries and copy versioned URLs with SRI hashes. Nothing from the CDN runs here.

Random trail

Five on-site URLs per load, each branching five more times, then it stops.