Useful tools.
Zero clutter.
Calculate, convert, format and generate in seconds. Dekuz tools run in your browser and are designed to be fast, simple and mobile friendly.
Built for speed
- No account required
- No external API dependency
- Works on phone and desktop
- Clear explanations and related links
All Tools
Choose a tool below or browse by category.
Age Calculator
Calculate exact age in years, months and days between two dates.
Percentage Calculator
Find a percentage of any number instantly.
BMI Calculator
Estimate body mass index from height and weight.
Loan EMI Calculator
Estimate monthly loan payment, total payment and interest.
Discount Calculator
Calculate sale price and money saved from a discount.
VAT Calculator
Add tax to a net amount or extract tax from a gross total.
Tip Calculator
Split a bill with a percentage tip across multiple people.
Compound Interest Calculator
Project compound growth over time with selectable compounding frequency.
Simple Interest Calculator
Calculate simple interest and final amount from principal, rate and time.
Salary to Hourly Calculator
Convert annual salary into hourly, weekly and monthly equivalents.
Length Converter
Convert between metric and imperial length units.
Weight Converter
Convert mass between metric and imperial units.
Temperature Converter
Convert Celsius, Fahrenheit and Kelvin temperatures.
Area Converter
Convert square units, acres and hectares.
Volume Converter
Convert liters, milliliters, cubic meters and common US volume units.
Speed Converter
Convert m/s, km/h, mph and knots.
Time Converter
Convert seconds, minutes, hours, days and weeks.
Data Storage Converter
Convert bytes, KB, MB, GB and TB using 1024-based units.
Word Counter
Count words, characters, sentences, paragraphs and reading time.
Character Counter
Count characters with and without spaces, letters, digits and lines.
Case Converter
Change text to uppercase, lowercase, title case or sentence case.
Remove Duplicate Lines
Keep one copy of repeated lines and remove blanks.
Text Sorter
Sort lines alphabetically, numerically or by length.
URL Encoder / Decoder
Encode or decode URL component text safely.
Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 back to text.
JSON Formatter & Validator
Validate, pretty-print or minify JSON.
Unix Timestamp Converter
Convert Unix seconds to a date or a local date-time to Unix time.
Password Generator
Generate a random password with selectable length and character sets.
UUID v4 Generator
Generate random version 4 UUID identifiers.
Lorem Ipsum Generator
Generate placeholder paragraphs for layouts and mockups.
Fraction Calculator
Add, subtract, multiply or divide two fractions and simplify the result.
Ratio Calculator
Simplify a two-number ratio and view its decimal relationship.
Average Calculator
Find the mean, sum, count, minimum and maximum of a list of numbers.
GCD Calculator
Find the greatest common divisor of two integers.
LCM Calculator
Find the least common multiple of two integers.
Percentage Change Calculator
Measure percentage increase or decrease from an old value to a new value.
Proportion Calculator
Solve a simple proportion in the form a/b = c/x.
Square Root Calculator
Calculate the principal square root of a non-negative number.
Exponent Calculator
Raise a base number to any numeric exponent.
Modulo Calculator
Find the remainder after dividing one number by another.
Profit Margin Calculator
Calculate gross profit and profit margin percentage from revenue and cost.
Markup Calculator
Calculate markup percentage from cost and selling price.
Break-Even Calculator
Estimate the number of units needed to cover fixed and variable costs.
Savings Goal Calculator
Estimate how many months regular deposits need to reach a savings target.
Investment Return Calculator
Calculate investment gain or loss and simple return on investment percentage.
Commission Calculator
Calculate commission earnings from sales and a percentage rate.
Sales Tax Calculator
Add a percentage sales tax to a subtotal.
Debt-to-Income Calculator
Estimate monthly debt-to-income ratio from debt payments and gross income.
Rent Affordability Calculator
Estimate a monthly rent budget from income and a chosen percentage.
Currency Conversion Fee Calculator
Estimate percentage and flat fees charged on a currency conversion amount.
Date Difference Calculator
Find calendar years, months, days and total days between two dates.
Add Days to Date
Add or subtract a number of calendar days from a chosen date.
Business Days Calculator
Count weekdays between two dates while excluding Saturdays and Sundays.
Time Duration Calculator
Find elapsed hours and minutes between two clock times.
Hours & Minutes to Decimal
Convert hours and minutes into decimal hours.
Decimal Hours to Time
Convert decimal hours into hours and minutes.
Week Number Calculator
Find the ISO week number and ISO week-year for a date.
Day of Year Calculator
Find a date’s ordinal day number within its year.
Work Hours Calculator
Calculate paid work duration from start, end and unpaid break time.
Time Zone Offset Converter
Convert a date and time between two fixed UTC offsets.
Pressure Converter
Convert pressure between pascals, kilopascals, bar, psi and atmospheres.
Energy Converter
Convert energy between joules, kilojoules, calories, watt-hours and BTU.
Power Converter
Convert power between watts, kilowatts, horsepower and BTU per hour.
Angle Converter
Convert angles between degrees, radians, gradians and turns.
Fuel Economy Converter
Convert fuel economy between MPG, km/L and L/100 km.
Frequency Converter
Convert frequency between hertz, kilohertz, megahertz and gigahertz.
Force Converter
Convert force between newtons, kilonewtons, pound-force and kilogram-force.
Data Transfer Rate Converter
Convert data transfer rates between bit/s, Kbit/s, Mbit/s, Gbit/s and bytes per second.
Cooking Measurement Converter
Convert common cooking volumes including teaspoons, tablespoons, cups and milliliters.
Pace Converter
Convert running pace between min/km, min/mile, km/h and mph.
Whitespace Remover
Trim text and collapse repeated spaces, tabs and blank lines.
Line Counter
Count total, non-empty and empty lines in text.
Sentence Counter
Estimate sentence count in a block of text.
Text Reverser
Reverse characters, words or line order in text.
Slug Generator
Turn a title or phrase into a clean lowercase URL slug.
Find & Replace Text
Find text and replace all matching occurrences.
Prefix / Suffix Lines
Add the same prefix and suffix to every non-empty line.
Remove Empty Lines
Delete blank or whitespace-only lines from text.
Duplicate Word Remover
Remove repeated words while keeping the first occurrence.
HTML Entity Encoder / Decoder
Encode special characters as HTML entities or decode entities back to text.
Why use Dekuz?
Dekuz focuses on small tasks that should not require complicated software. Most calculations and transformations happen directly in your browser, which keeps the experience quick and avoids unnecessary data transfers.
Every tool page links to its category hub, closely related utilities and the complete tools directory. That makes it easier for visitors and search engines to discover connected pages without relying on isolated URLs.