Finance Tools

Open-source FIRE retirement portfolio simulator that runs your plan against 150+ years of historical US market data. Configure portfolio size, annual spending, asset allocation, withdrawal strategies, Social Security income, and more to see what percentage of historical scenarios your retirement survives.

World's largest cost of living database. Compare prices, rent, groceries, and quality of life across cities worldwide.

Beautiful personal finance calculators for retirement, investment, mortgage, and budgeting. Interactive visualizations with no data collection.

Financial independence retirement calculator. Simulate withdrawal strategies with historical market data and Monte Carlo analysis.

World-trusted currency converter with live exchange rates. Convert between 300+ currencies and precious metals with mid-market rates updated every minute.

Official SEC compound interest calculator. Estimate how your savings or investments could grow over time with compound interest. Simple, trustworthy, no ads.

Currency converter showing the real, mid-market exchange rate. Compare rates from banks and transfer services to see how much you could save.

Offline-first personal budget manager inspired by YNAB. Envelope budgeting with automatic sync — all data stays on your device.