InvestingLab

Free financial calculators & personal finance tips from InvestingLab.com — always one click away.

Take control of your money without leaving your browser. The InvestingLab extension puts six free financial calculators, rotating daily money tips, and the latest personal finance content from InvestingLab.com in your toolbar — always one click away, always free, always with no account required. 🧮 SIX FREE CALCULATORS — INSTANTLY ACCESSIBLE Every tool InvestingLab.com offers is right in the popup. Click any calculator to open it instantly in a new tab: 📊 Net Worth Calculator — See your full financial picture in seconds. Add your assets and liabilities to calculate your real net worth. 🏠 Mortgage Calculator — Estimate your monthly payment, total interest paid, and how different rates affect your bottom line. ⚖️ Debt vs Invest Calculator — Not sure whether to pay off debt or invest your extra cash? Model both scenarios side by side. 🔑 Rent vs Buy Calculator — Find your break-even point and decide which option actually makes sense for your situation and timeline. 💰 Budget Planner — Build a budget that's grounded in your real income and expenses, based on the 50/30/20 framework. 🌅 Retirement Planner — Map your path to financial independence with projections based on your contributions and time horizon. 📝 LIVE CONTENT — ALWAYS FRESH The extension stays current automatically. Every 6 hours, it refreshes in the background to pull: The latest blog posts from InvestingLab.com — with title, publish date, and a preview excerpt. Click to read the full article. The latest videos from the InvestingLab YouTube channel — with thumbnails and publish dates. Click to watch directly on YouTube. A daily rotating money tip — drawn from the most recent InvestingLab content, covering budgeting, debt, investing, net worth, mortgages, and retirement. No manual updates needed. The content updates silently while you browse — you'll always see something new when you open the popup. ⭐ FEATURED TOOL OF THE DAY Each day, one calculator is highlighted as the Featured Tool, cycling through all six so every tool gets its moment in the spotlight. A quick reminder to use the right tool for whatever financial question is on your mind today. ✅ 100% FREE. ZERO SIGNUP. ZERO TRACKING. InvestingLab.com was built on one principle: free financial tools for everyone, with no barriers. The extension follows the same rules: *No account or login required — ever *No personal data collected or transmitted *No ads, no upsells, no premium tier *Works offline with cached content if your connection drops *Lightweight — under 20KB installed 🔒 PERMISSIONS — WHAT WE REQUEST AND WHY This extension requests only the permissions it genuinely needs: We do not request access to your browsing history, tabs, bookmarks, or any other sensitive data. ABOUT INVESTINGLAB.COM InvestingLab.com is an independent personal finance website offering free, no-signup financial calculators for everyday decisions — mortgages, budgets, retirement, net worth, rent vs buy, and debt vs investing. All tools are built for educational use and scenario modelling, with no data collection and no financial advice. Visit https://www.investinglab.com to explore all the tools →