hstcalculator onl (hstcalculatoronl)

hstcalculator.onl is a fast, privacy-first online tool designed for Canadians to instantly calculate or reverse Harmonized Sales Tax (HST) by province. With 2025 tax rates preloaded, it serves freelancers, business owners, and finance learners who need quick and accurate results—no login, no ads, no tracking. Built by Tara Rebecca, a developer passionate about simplifying tax tasks, this tool is sleek, mobile-friendly, and always free to use.