I build infrastructure for a living — and hold my side projects to the same standard.

21 free India investment calculators — SIP, PPF, NPS, EMI, capital gains, and more — with the year-by-year math shown, not hidden.

Eight income-tax calculators for FY 2025-26 — old vs. new regime, raises, bonuses, and freelance 44ADA tax.

PAYE, USC, and PRSI take-home pay calculator for Ireland, built the same trip I moved to Dublin.

IPv4 CIDR subnetting with a live tree view — divide a block, undo it, and see the whole hierarchy.

A fast, distraction-free notes app — no account, no sync service, just a place to write things down.

A quick way to inspect a URL — headers, redirects, and what it actually resolves to before you click it.

Free Ireland & India invoice generator — edit directly on the invoice with live totals, recurring billing, and PDF/CSV export.

One menu bar app: CPU/MEM monitor, clipboard history with a global paste picker, a calculator/calendar widget, and a scratch notepad.

Native disk-cleanup app — scans caches and junk, everything goes through Trash first, nothing is auto-deleted.

Finds duplicate files by content hash, not filename — same Trash-first safety model as DiskSweeper.

Screenshot-to-text via Apple's on-device Vision OCR — capture a region and the text is already on your clipboard.

Native PDF & image toolkit — compress, merge, and convert, all offline except the one tool that isn't.

Shows your real Claude.ai session and weekly usage limits right in the menu bar — no browser tab required.