Tools, apps and experiments I build and ship myself. Some free, some open source, some for sale, some just for my own desk.
Free UK calculators for money and everyday maths. No sign-up, no email.
A small library of single-purpose web calculators: UK take-home salary, mortgage repayments and overpayments, compound interest, percentages, unit conversion, commute time, countdowns and arrow spine. Every tool is one page, works instantly with sensible defaults, and encodes its state in the URL, so any result is a shareable link.
One macOS menubar app for every capture tool on my desk.
Hold-to-talk dictation transcribed on the Neural Engine, a screen recorder, screenshot capture with an annotation editor, and a magnifying colour picker, all behind one shell. A single panel drops from the menubar and is the whole app, while a floating pill reports what is happening and offers the next step. Swift 6 and SwiftUI, everything local, no accounts and no cloud.
Built for my own desk, in daily use, not publicly released.