CalcViso is a product of AllGuard IT. Builders spend half their day on tiny calculations and conversions — durations, percentages, unit conversions, word counts, quick PDF jobs — and the sites offering them are usually slow, ad-heavy or harvesting sign-ups. CalcViso is the version we'd want: 265 calculators and tools across finance, health, math, education, everyday life, dates, construction and conversion, plus full text, image and PDF utility suites, all executing locally in the browser. That architecture makes every tool instant and guarantees user inputs are never uploaded anywhere. It's free with no account system at all, works on any device, and grows by user request. Try to break it, tell me which tool your workflow is missing, and I'll build the most-requested ones first.