The bench
Tools
Every one of these runs entirely in your browser. Nothing is uploaded, nothing is stored, and none of them need a server. They exist because I got tired of doing the same arithmetic by hand in the middle of writing something else.
Each one shows its working so you can disagree with it.
Security 1
File signature inspector
Runs in your browser · nothing uploaded
Drop a file and compare what the extension claims against what the bytes actually say. Flags RTLO characters, invisible characters, double extensions, and a ZIP appended to another format.
Open tool why I built it
Chemistry & pharmacology 3
Elemental mineral calculator
Runs in your browser · nothing uploaded
How much magnesium is actually in 400 mg of magnesium oxide, and is the label even chemically possible? Parses any formula, hydrates included, from standard atomic weights.
Open tool why I built it
Half-life & accumulation visualiser
Runs in your browser · nothing uploaded
A one-compartment model that shows why a short half-life makes peaks and troughs swing, and why repeated dosing takes four to five half-lives to plateau. Relative units — a shape tool, not a dosing calculator.
Open tool
Interactive periodic table
Runs in your browser · nothing uploaded
Atomic numbers, shells, masses, groups, and basic chemistry, with a search box.
Open tool
Reading & evidence 1
Study smell test
Runs in your browser · nothing uploaded
Twelve questions to run against a paper before quoting it: who was studied, how it was designed, what could explain the result instead, and who paid. Produces no score, on purpose.
Open tool why I built it
Nothing in that category.
External tools I use
- ProTox 3.0
Toxicity prediction. A hypothesis generator, not a human safety test — its output belongs in the "what should I investigate?" column, never the "this is safe" one.
- SwissTargetPrediction
Rough target-prediction exploration. Treat it as a lead generator, not a source of truth.
- CyberChef
The everything-encoder. Runs locally in the browser once loaded.