Track your net worth and investment portfolio with automatic price updates, asset allocation, expense tracking, and FIRE calculator. Modern alternative to spreadsheets. Next.js + Firebase + TypeScript.

Gandzi is a financial management app that helps you understand, simulate, and grow your wealth with precision from budget tracking to long-term projections.

Inflation-aware FIRE & Coast FIRE calculator - 100% in-browser, zero dependencies, bilingual.

Tax-efficient withdrawal strategist for retirement planning. Optimizes for 401(k), Roth, and Brokerage accounts

ETF portfolio simulator Excel with tax calculation, inflation adjustment and retirement planning for European investors (14 countries supported).

財務自由永動機試算

Personal finance management platform with budgeting, investment performance tracking, debt payoff strategies, tax estimation, FIRE planning, Monte Carlo simulations, and AI-powered what-if analysis. Privacy-first with local storage, deterministic projections, and multi-scenario comparison.

When might you be able to FIRE?

Free, open-source FIRE calculator. Find your Coast FIRE number — how much to invest today so compound interest does the rest. Zero dependencies.

Personal Finance Tracker & FIRE Calculator - Boglehead Portfolio Manager. Spring Boot REST API + React (Vite/TypeScript/Tailwind CSS)

Free, open-source Claude Code Agent Skills for personal finance — FIRE planning, rent-vs-buy, tax optimization & gain-harvesting, equity comp, retirement income (pensions/annuities, bond ladders), debt & student loans, relocation, and self-employed/business-owner planning. Powered by the public planfi MCP (no auth). Not financial advice.

Interactive browser-only FIRE planner. Tells you when you can actually retire — not just whether your target year survives. Draggable retirement age, 12 geo-arbitrage destinations, 7-strategy withdrawal optimizer (bracket-fill, Roth ladder, tax-optimized search, …). US tax/SS/IRMAA/RMD aware. No server, no tracking.