Free everyday tools
Quick calculators, converters and generators that work right in your browser. No sign-up, no uploads, no tracking.
Calculators
Percentage CalculatorWork out a percentage of a number, what percent one number is of another, and percentage change.BMI CalculatorCalculate body mass index (BMI) for adults in metric or imperial units. General information only, not medical advice.Average CalculatorFind the mean, median, mode, range and standard deviation of a list of numbers.
Money
Loan Repayment CalculatorEstimate weekly, fortnightly or monthly repayments, total interest and total cost for a loan.Tip CalculatorWork out the tip and split the bill between any number of people.GST Calculator (Australia 10%)Add or remove 10% Australian GST from any amount.Mortgage Repayment CalculatorEstimate home loan repayments monthly, fortnightly or weekly, total interest, and the effect of extra repayments.Compound Interest CalculatorSee how savings grow with compound interest and regular deposits.Savings Goal CalculatorWork out how much to save each month to reach a goal by a set date.Discount CalculatorFind the sale price and how much you save from a percentage discount.Fuel Cost CalculatorEstimate the fuel cost of a road trip and split it between passengers.
Date & time
Time Zone ConverterConvert a date and time between any two time zones, with daylight saving handled automatically.Age CalculatorFind your exact age in years, months and days, plus total days and days until your next birthday.Date Difference CalculatorCount the days, weeks, months and weekdays between two dates.Countdown TimerA simple online countdown timer with an alarm sound. Set hours, minutes and seconds.Online StopwatchA free online stopwatch with lap times, accurate to a hundredth of a second.Time Zone Meeting PlannerFind a meeting time that works across several time zones, with working hours highlighted.Add or Subtract Days from a DateAdd or subtract days, weeks, months or years from a date and see the weekday.Unix Timestamp ConverterConvert Unix epoch timestamps to readable dates and back.
Text & code
Word CounterCount words, characters, sentences and paragraphs and estimate reading time as you type.Case ConverterChange text to UPPER, lower, Title, Sentence, camelCase, snake_case or kebab-case.JSON Formatter & ValidatorFormat, minify and validate JSON in your browser, with the error position shown.Base64 Encode & DecodeEncode text to Base64 or decode Base64 back to text, with full Unicode (UTF-8) support.URL Encoder / DecoderPercent-encode text for use in URLs, or decode encoded URLs back to plain text.Sort Lines & Remove DuplicatesSort lines alphabetically, remove duplicate or blank lines, reverse or shuffle a list.Text Compare (Diff)Compare two texts line by line and highlight what was added or removed.Hash Generator (SHA-256)Calculate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text in your browser.Markdown PreviewWrite Markdown and see the formatted result instantly, then copy the HTML.
Generators
QR Code GeneratorMake a free QR code for a link, text, phone number or Wi-Fi details and download it as a PNG.Password GeneratorCreate strong random passwords in your browser using secure randomness. Nothing is sent or stored.Random Number GeneratorPick one or many random numbers in any range, with or without repeats. Good for draws and games.Lorem Ipsum GeneratorGenerate placeholder lorem ipsum text by paragraphs, sentences or words.UUID GeneratorGenerate random version 4 UUIDs (GUIDs) in bulk using secure randomness.
Image & colour
Colour Picker & ConverterPick a colour and get its HEX, RGB and HSL codes, plus text contrast ratios.Image ResizerResize and convert JPG, PNG or WebP images in your browser. Your photos are never uploaded.Aspect Ratio CalculatorSimplify a width and height to an aspect ratio and resize while keeping proportions.
Converters
Unit ConverterConvert length, weight, volume, area, speed, data and temperature units instantly.Cooking Measurement ConverterConvert cups, tablespoons, teaspoons, millilitres, ounces and grams for recipes, with Australian and US measures.Temperature ConverterConvert between Celsius, Fahrenheit and Kelvin instantly.Speed & Pace ConverterConvert km/h, mph, m/s and knots, and turn a speed into running pace per km or mile.Roman Numeral ConverterConvert numbers to Roman numerals and Roman numerals back to numbers.Binary, Hex & Number Base ConverterConvert numbers between binary, octal, decimal and hexadecimal.
No tool matches that. Suggest one.