Utility Tools
Essential utility tools for everyday tasks. Generate passwords, convert units, calculate BMI and BMR, manage timers, check DPI/PPI, and access a wide range of practical utilities. All tools are free and work offline.
Yes / No Generator
Generate random Yes or No answers instantly. Perfect for quick decisions, random choices, coin flips, and decision-making.
Username Generator
Generate unique usernames instantly. Choose from random, descriptive, professional, gaming, or creative styles. Customize length, numbers, and separators. Perfect for accounts, profiles, and usernames.
Coin Flip Simulator
Flip a virtual coin to get heads or tails. Perfect for decision-making, games, and random choices. Includes flip animation and statistics tracking.
Dice Rolling Simulator
Roll a virtual six-sided die. Perfect for games, decision-making, and random number generation. Includes roll animation and statistics tracking.
Pomodoro Timer
Boost productivity with the Pomodoro Technique. Set 25-minute work sessions, take breaks, and track your focus time. Perfect for studying, working, and maintaining focus.
52/17 Rule Timer
Boost productivity with the 52/17 rule. Work for 52 minutes, then take a 17-minute break. Perfect for maintaining focus and preventing burnout.
Deep Work Timer
Master deep work with Cal Newport's methodology. Schedule focused, distraction-free work sessions to achieve peak productivity and produce your best work.
Countdown Timer
Set a custom countdown timer for any duration. Perfect for cooking, workouts, presentations, or any time-sensitive task. Simple, accurate, and easy to use.
Stopwatch Timer
Track elapsed time with millisecond precision (00:00:00.000 format). Perfect for workouts, races, cooking, presentations, or any activity where you need to measure how long something takes with accuracy down to 0.001 seconds.
Unit Converter
Convert between units of length, weight, temperature, volume, area, speed, time, data storage, energy, and pressure. Instant and accurate conversions.
Unit Prefix Converter
Convert values between SI and IEC prefixes instantly. Convert milli to kilo, mega to micro, Ki to Mi, and more.
Length Converter
Convert between length units: meters, kilometers, miles, feet, inches, yards, and more. Perfect for travel, construction, engineering, and everyday measurements.
Weight / Mass Converter
Convert between weight and mass units: kilograms, pounds, grams, ounces, stones, and more. Perfect for cooking, fitness, shipping, and scientific measurements.
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin. Perfect for weather, cooking, scientific calculations, and international temperature readings.
Volume Converter
Convert between volume units: liters, gallons, cups, tablespoons, teaspoons, milliliters, and more. Perfect for cooking, baking, chemistry, and liquid measurements.
Area Converter
Convert between area units: square meters, square feet, acres, hectares, square miles, and more. Perfect for real estate, construction, land measurement, and property calculations.
Speed Converter
Convert between speed units: kilometers per hour, miles per hour, meters per second, knots, and more. Perfect for automotive, aviation, sports, and velocity calculations.
Time Converter
Convert between time units: seconds, minutes, hours, days, weeks, months, years, and more. Perfect for scheduling, project planning, and time-based calculations.
Digital Storage Converter
Convert between digital storage units: bytes, kilobytes, megabytes, gigabytes, terabytes, and more. Perfect for file sizes, storage capacity, and data transfer calculations.
Energy Converter
Convert between energy units: joules, calories, kilowatt-hours, BTUs, electronvolts, and more. Perfect for physics, engineering, nutrition, and energy calculations.
kWh to Watts Calculator
Convert energy (kWh) and time (hours) into average power in watts using W = kWh × 1000 ÷ h. Useful for planning loads and estimating average power from energy totals.
Watts to kWh Calculator
Convert power (watts) and time (hours) into energy in kilowatt-hours using kWh = W × h ÷ 1,000. Useful for estimating how much energy appliances use over a runtime.
Electricity Cost Calculator
Estimate electricity cost from kilowatt-hours and your price per kWh, or derive kWh from watts and hours. Quick variable-cost estimates in your browser.
Battery Runtime Calculator
Estimate battery runtime from watt-hour capacity or Ah × V, average load in watts, and optional system efficiency. Simple planning math in your browser.
Solar Panel Output Calculator
Estimate daily solar energy from DC kWp (or panel watts × count), peak sun hours, and optional system performance %. Quick yield planning in your browser.
Pressure Converter
Convert between pressure units: pascals, PSI, bar, atmospheres, torr, mmHg, and more. Perfect for automotive, aviation, engineering, and scientific pressure measurements.
DPI/PPI Calculator
Calculate screen DPI/PPI from resolution and size. Find optimal viewing distance for monitors and TVs. Reverse calculate resolution from desired DPI. Perfect for monitor shopping and display setup.