Sitemap & Tools Index
Access all 77 Xorvian tools in one click, organised by category or in alphabetical order.
Merge PDF
Combine several files into one.
Split PDF
Split a PDF into several files.
Compress PDF
Reduce the size of your PDFs.
Rotate PDF
Rotate the pages of a PDF.
Extract PDF Pages
Extract only the pages you need.
Image to PDF
Turn your images into a PDF.
PDF to Image
Export each page as an image.
Free CV & Resume Builder
Create and download a professional PDF resume.
Cover Letter Generator
Write and export a professional cover letter in PDF.
Calculators
Percentage Calculator
Percentages, increases and discounts.
Grade Calculator
Weighted averages and final grades.
BMI Calculator
Body mass index.
Age Calculator
Your exact age, to the day.
Scientific Calculator
A complete scientific calculator.
Converters
Universal Image Converter
Convert and compress JPG, PNG, WebP, and AVIF images.
Universal Audio & Video Cutter
Trim, compress, and extract sound from audio and video files.
Unit Converter
Every unit in a single tool.
Length Converter
Metres, feet, miles and more.
Weight Converter
Kilos, pounds, ounces.
Temperature Converter
Celsius, Fahrenheit, Kelvin.
Speed Converter
km/h, mph, knots, m/s.
Time Converter
Seconds, hours, weeks.
Area Converter
m², hectares, acres.
Volume Converter
Litres, gallons, m³.
Data Storage Converter
Bytes, MB, GB, TB.
Currency Converter
Today's exchange rates.
Text
Word Counter
Words, sentences, reading time.
Character Counter
Characters with and without spaces.
Case Converter
UPPERCASE, lowercase, camelCase.
Lorem Ipsum Generator
Placeholder text for your mockups.
JSON Formatter
Format and validate JSON.
Base64 Encoder
Encode text to Base64.
Base64 Decoder
Decode a Base64 string.
URL Encoder
Encode a URL or a parameter.
URL Decoder
Decode an encoded URL.
Text Diff
Compare two texts.
Markdown Preview
Preview your Markdown live.
Regular Expression (Regex) Tester & Builder
Test, visualize, and generate regular expressions with Kleene star and live highlighting.
Generators
Password Generator
Strong, random passwords.
QR Code Generator
QR codes for any link or text.
Barcode Generator
Standard barcodes in a click.
UUID Generator
Unique identifiers on demand.
Color Converter
HEX, RGB, HSL in sync.
Random Number Generator
Random numbers in a range.
Random Password
A quick, secure password.
Random Color Generator
Fresh colours for your palettes.
Random Name Picker
Pick a name fairly.
Time
Chemistry
Molar Mass Calculator
Molar mass and elemental composition.
Molarity Calculator
Molar concentration and mass to weigh.
Dilution Calculator
Equation C1V1 = C2V2 and lab protocol.
Concentration Calculator
Conversions g/L, mol/L, % and ppm.
Stoichiometry Calculator
Limiting reactant and theoretical yield.
pH Calculator
Calculate pH, pOH, [H₃O⁺] and pKa.
Ideal Gas Law Calculator (PV = nRT)
Solve PV = nRT for pressure, volume, moles, temperature or mass.
Beer-Lambert Law Calculator
Calculate absorbance, concentration, extinction coefficient and transmittance.
Buffer Solution Calculator
Calculate buffer pH, pKa, acid/base ratio and Henderson-Hasselbalch equilibrium.
Empirical Formula Calculator
Determine empirical and molecular formulas from percent composition or element masses.
Finance
Invoice & Quote Generator
Create professional invoices and estimates in PDF for freelancers.
Mortgage & Amortization Calculator
Calculate mortgage payments, amortization schedule, and debt-to-income ratio.
VAT & Sales Tax Calculator
Instantly calculate net amount, VAT and gross price for France, UK, Europe, US/Canada sales tax or custom rates.
Compound Interest Calculator
Simulate your wealth growth with compound interest, regular contributions, yearly schedules, and breakdowns.
Loan & Mortgage Calculator
Calculate your monthly loan payments, total interest cost, insurance, and full amortization schedule.
Profit Margin & Markup Calculator
Calculate your gross profit margin, markup rate, sales margin, and multiplier coefficient with VAT/sales tax.
Gross to Net Salary Calculator
Convert your gross salary to net pay (executive, non-executive, public sector), income tax, and total employer cost.
Physics
Ohm's Law & Power Calculator
Calculate voltage (V), current (I), resistance (R), and electric power (P) with Ohm's Law and Joule's Law.
Speed, Distance & Time Calculator
Calculate average speed, distance, or travel duration with running pace predictions and unit conversions.
Kinetic Energy Calculator
Calculate kinetic energy (1/2 mv²), velocity, or mass of a moving object with drop height and impact force equivalency.
Pressure & Force Calculator
Calculate pressure (P = F/A), applied force, or contact surface area with hydrostatic fluid pressure and unit conversions.
Free Fall & Gravity Calculator
Calculate impact velocity, fall duration, and distance (h = 1/2 gt²) under Earth, Moon, Mars, and custom gravities.
Mathematics
Quadratic Equation Solver
Solve any ax² + bx + c = 0 quadratic equation with discriminant Delta, real/complex roots, vertex, and canonical form.
Pythagorean Theorem Calculator
Calculate hypotenuse (a² + b² = c²), missing side, acute angles, area, and perimeter of a right-angled triangle.
Fraction Calculator & Simplifier
Add, subtract, multiply, divide, and simplify fractions with mixed numbers, decimal conversions, and step-by-step reduction.
Descriptive Statistics Calculator
Calculate mean, median, mode, standard deviation, sample/population variance, quartiles Q1/Q3, and range for any data set.
GCD & LCM Calculator
Find the Greatest Common Divisor (GCD) and Least Common Multiple (LCM) with Euclidean algorithm steps and prime factorization.