All Online Tools & Free Calculators

Calculate 2D/3D midpoint coordinates M, half-segment length, and solve for missing endpoints.

Calculate 2D and 3D Euclidean distance between coordinates, Manhattan metric, and displacement vectors.

Calculate triangle area via Heron's formula, perimeter, all 3 angles, and inradius/circumradius.

Calculate rectangle area, perimeter, diagonal, and circumcircle with step-by-step geometry formulas.

Calculate surface area and perimeter for circle, rectangle, triangle, trapezoid, and ellipse.

Calculate 3D volume, total surface area, and liquid capacity for 6 solid figures.

Calculate sphere volume, surface area, radius, diameter, and hemisphere properties with step-by-step formulas.

Calculate cylinder volume, lateral area, total surface area, and fluid capacity with step-by-step formulas.

Calculate cone volume, slant height, lateral area, and total surface area with step-by-step formulas.

Calculate the exact duration between two calendar dates in days, weeks, months, and years.

Calculate working business days between two dates, automatically excluding Saturdays, Sundays, and public holidays.

Live cross-asset conversion between 160+ fiat currencies, 150+ cryptocurrencies, and precious metals with real-time comparative matrix.

Calculate optimal daily water intake in liters and cups based on weight, activity, and climate.

Convert liquid and dry volume units between Metric (L, mL, m³) and Imperial (Gallons, Fluid Ounces, Cups).

Convert speed units between km/h, mph, m/s, knots, ft/s, and Mach.

Free online energy unit converter between Joules (J), Kilowatt-hours (kWh), Kilocalories (kcal), Calories (cal), and BTU.

Free online pressure unit converter between PSI, Bar, Pascal (Pa), Kilopascal (kPa), Standard Atmosphere (atm), and mmHg.

Sort text lines alphabetically (A-Z / Z-A), numerically (natural order), or by line length.

Free online Lorem Ipsum generator for UI/UX designers, developers, and graphic artists with customizable paragraphs and HTML tags.

Minify and compress JSON documents by stripping whitespace, indentation, and newlines for optimized network payloads.

Validate JSON syntax against RFC 8259 standards, locate syntax errors by line/column, and repair malformed JSON with 1-Click Auto-Fix.

Convert nested or flat JSON objects and arrays into structured, tabular CSV spreadsheet format compliant with RFC 4180.

Convert tabular CSV and TSV spreadsheet data into structured JSON objects and arrays with automatic primitive type parsing.

Convert JSON payloads into structured, well-formed XML with configurable root tags and attributes.