Tools I've built and shipped.

A secure file encryption tool with AES-256, HMAC and tamper protection. Built because I wanted something better than toy encryption tools.

A browser-based Markdown editor with a live preview that turns raw Markdown into clean HTML and print-ready PDF documents.

A browser-based image converter for resizing and converting JPG, JPEG, and PNG files into other image formats or PDF — entirely in the browser.

A mobile-friendly expense splitter for groups. Add people, record bills, and see who owes whom without needing an account or backend.

A desktop-style expense ledger for managing shared bills, tracking payments, viewing member balances, and settling group expenses.

Practical notes about computers, software, phones, and everyday technology — focused on understanding how things work and using them properly.