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Encode and decode text using the ancient Hebrew substitution cipher. Fast, secure, and completely free to use.

Professional impedance calculator for building precise electronics. Calculate Fast with a variety of circuits and components.

Calculate your construction loan payments, interest costs, and project timeline with our professional construction financing calculator.

Create professional concept maps instantly with our free online tool. Perfect for students, educators, and professionals who want to visualize knowledge, organize thoughts, and enhance learning through interactive mind mapping.

Discover the incredible power of extra payments! See exactly how much money and time you can save by adding just a little extra to your monthly loan payment.

Calculate standard deviation, variance, and mean instantly with our comprehensive statistical tool. Perfect for students, researchers, and data analysts.

Stop wondering if you’ll have enough. Our advanced calculator shows exactly when you can retire, how long your money will last, and what adjustments can secure your financial future.

The ultimate compound interest calculator for 2025. Make your money work harder with sophisticated financial planning tools. Calculate retirement savings, investment returns, and wealth growth with real-world scenarios including inflation adjustment, tax optimization, and dollar-cost averaging strategies.