Free Online Tools

Smart utility tools that run in your browser. No sign-up, no data collection — just results.

Calculators

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A versatile calculator with basic and scientific modes.

Calculate percentages easily. Free, instant, no signup.

Calculate the future value of an investment with compound interest.

Calculate sale prices and savings instantly.

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Create gradients visually and get code for CSS, Tailwind, Flutter, SVG, and React.

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Check color contrast ratios for WCAG accessibility compliance.