All tools

Combine several files into one.

Split a PDF into several files.

Reduce the size of your PDFs.

Rotate the pages of a PDF.

Extract only the pages you need.

Turn your images into a PDF.

Export each page as an image.

Create and download a professional PDF resume.

Write and export a professional cover letter in PDF.

Convert and compress JPG, PNG, WebP, and AVIF images.

Trim, compress, and extract sound from audio and video files.

Create professional invoices and estimates in PDF for freelancers.

Calculate mortgage payments, amortization schedule, and debt-to-income ratio.

Percentages, increases and discounts.

Weighted averages and final grades.

Body mass index.

Your exact age, to the day.

A complete scientific calculator.

Every unit in a single tool.

Metres, feet, miles and more.

Kilos, pounds, ounces.

Celsius, Fahrenheit, Kelvin.

km/h, mph, knots, m/s.

Seconds, hours, weeks.

m², hectares, acres.

Litres, gallons, m³.

Bytes, MB, GB, TB.

Today's exchange rates.

Words, sentences, reading time.

Characters with and without spaces.

UPPERCASE, lowercase, camelCase.

Placeholder text for your mockups.

Format and validate JSON.

Encode text to Base64.

Decode a Base64 string.

Encode a URL or a parameter.

Decode an encoded URL.

Compare two texts.

Preview your Markdown live.

Test, visualize, and generate regular expressions with Kleene star and live highlighting.

Strong, random passwords.

QR codes for any link or text.

Standard barcodes in a click.

Unique identifiers on demand.

HEX, RGB, HSL in sync.

Random numbers in a range.

A quick, secure password.

Fresh colours for your palettes.

Pick a name fairly.

Focus in 25-minute sessions.

A countdown for anything.

Precise timing with laps.

Molar mass and elemental composition.

Molar concentration and mass to weigh.

Equation C1V1 = C2V2 and lab protocol.

Conversions g/L, mol/L, % and ppm.

Limiting reactant and theoretical yield.

Calculate pH, pOH, [H₃O⁺] and pKa.

Solve PV = nRT for pressure, volume, moles, temperature or mass.

Calculate absorbance, concentration, extinction coefficient and transmittance.

Calculate buffer pH, pKa, acid/base ratio and Henderson-Hasselbalch equilibrium.

Determine empirical and molecular formulas from percent composition or element masses.

Instantly calculate net amount, VAT and gross price for France, UK, Europe, US/Canada sales tax or custom rates.

Simulate your wealth growth with compound interest, regular contributions, yearly schedules, and breakdowns.

Calculate your monthly loan payments, total interest cost, insurance, and full amortization schedule.

Calculate your gross profit margin, markup rate, sales margin, and multiplier coefficient with VAT/sales tax.

Convert your gross salary to net pay (executive, non-executive, public sector), income tax, and total employer cost.

Calculate voltage (V), current (I), resistance (R), and electric power (P) with Ohm's Law and Joule's Law.

Calculate average speed, distance, or travel duration with running pace predictions and unit conversions.

Calculate kinetic energy (1/2 mv²), velocity, or mass of a moving object with drop height and impact force equivalency.

Calculate pressure (P = F/A), applied force, or contact surface area with hydrostatic fluid pressure and unit conversions.

Calculate impact velocity, fall duration, and distance (h = 1/2 gt²) under Earth, Moon, Mars, and custom gravities.

Solve any ax² + bx + c = 0 quadratic equation with discriminant Delta, real/complex roots, vertex, and canonical form.

Calculate hypotenuse (a² + b² = c²), missing side, acute angles, area, and perimeter of a right-angled triangle.

Add, subtract, multiply, divide, and simplify fractions with mixed numbers, decimal conversions, and step-by-step reduction.

Calculate mean, median, mode, standard deviation, sample/population variance, quartiles Q1/Q3, and range for any data set.

Find the Greatest Common Divisor (GCD) and Least Common Multiple (LCM) with Euclidean algorithm steps and prime factorization.