RunMyWealth

RunMyWealth is a suite of automated, smart financial calculators that run entirely client-side in your browser.

Unlike traditional finance sites that require signups, hide results behind email walls, or link your bank account, RunMyWealth processes everything locally. Your data never leaves your device, making it the most private way to model your financial future.

The platform covers 8 essential financial models:
• Mortgage Calculator (full amortization schedule and extra-payment scenarios)
• FIRE Calculator (find your financial independence number)
• Nest Egg Longevity (how long your savings will last)
• Savings Goal (required monthly contributions)
• Personal Loans & Credit Card Debt Payoff
• Debt Snowball vs. Avalanche (side-by-side comparison)
• ETF Compound Interest (projecting long-term growth and fee impact)

Every tool features automated real-time calculation, visual charts, and the ability to export full schedules to Excel. There is also a "Retire Abroad" quiz that ranks countries by how long your savings will last, and a plain-English educational blog called Wealth Mechanics.

Built solo using TanStack Start, React 19, TypeScript, and Tailwind CSS. Fully bilingual (English and Spanish) and completely free to use.