50 free tools
Free everyday utility tools
Fifty small tools for jobs people actually repeat: counting words, splitting a bill, checking a date, making a QR code, comparing two prices, and the rest of the list below.
Writing
- Word counterWords, characters, sentences and reading time.
- Case converterUppercase, title case, camelCase and snake_case.
- Clean textTrim lines and collapse extra spaces.
- Find and replaceReplace a phrase and see how many changed.
- Sort linesSort A to Z, reverse, or as numbers, and drop duplicates.
- Compare two textsSee which lines differ, side by side.
- Password generatorA random password from your browser's crypto generator.
- List randomizerPick a winner, shuffle a list, or split teams.
Time
- Age calculatorYears, months, days and the next birthday.
- Date calculatorDays between two dates, or add days, weeks and months.
- Business daysWeekdays between two dates. Weekends are skipped.
- Time zone converterWhat time a meeting is in another zone.
- Unix timestampTurn seconds or milliseconds into a date, and back.
- CountdownCount down hours, minutes and seconds.
- StopwatchStart, pause and record laps.
- Pomodoro timerFocus blocks, short breaks and a longer break.
Money
- Tip calculatorTip, total and the share for each person.
- Split a billDivide a bill, with an optional tip.
- Discount calculatorSale price and how much you save.
- Percentage calculatorA percent of a number, or the change between two numbers.
- Sales tax calculatorAdd or remove GST, VAT or a sales-tax rate.
- Loan paymentMonthly payment and the interest over the term.
- Compound interestFuture value when interest compounds.
- Salary converterHourly, weekly, monthly and annual pay.
Images and codes
- Image compressorShrink a photo in the tab and download it.
Scan Via CamOpen - PNG to JPGTurn a PNG into a JPG, with a white background.Scan Via CamOpen
- Strip image EXIFRe-save a photo so camera metadata is left behind.Scan Via CamOpen
- QR code generatorMake a QR code for a link or a short note.
- QR code readerRead a QR code from the camera or a picture.
- Color converterHex, RGB and HSL for the same color.
- Contrast checkerWCAG contrast for body text and large text.
- Aspect ratioSimplify a ratio and resize one side.
Home and body
- BMI calculatorBody mass index from height and weight.
- Calorie needsBMR and a daily estimate from activity.
- Water intakeA daily water amount from body weight.
- Due date40 weeks from the first day of the last period.
- Running pacePace per kilometre and per mile from a distance and a time.
- Recipe scalerScale ingredient amounts to a new number of servings.
Units Converter & CalculatorOpen - Fuel costLitres and cost for a trip from distance and fuel use.
- Electricity costkWh and cost from watts, hours and your price.
- Paint calculatorWall area and litres for a rectangular room.
- Sleep cyclesBedtimes that land on 90-minute cycles before you wake.
Numbers and school
- GPA calculatorA 4.0 GPA from letter grades and credits.
- Final gradeThe percent you need on the final to hit a target.
- Fraction calculatorAdd, subtract, multiply and divide fractions.
- Ratio calculatorSolve a proportion or simplify a ratio.
- Roman numeralsConvert between numbers and Roman numerals.
- Number to wordsSpell a whole number in English.
- Dice rollerRoll dice with the browser's random generator.
- Unit priceWhich pack is cheaper per unit.Units Converter & CalculatorOpen
About these tools
Writing tools cover a draft. The word counter reports words, characters, sentences and a reading time. Case, clean, find-and-replace and sort lines rewrite the text in the box. Compare shows lines that differ. The password generator uses the browser's cryptographic random source, and the list randomizer picks a name, shuffles, or splits teams.
Time tools answer a date question without a spreadsheet. Age, the gap between two dates, and weekday counts skip nothing you did not ask them to skip: business days skip Saturday and Sunday only, not public holidays. The time zone page uses your browser's timezone data. The countdown, stopwatch and Pomodoro timer stay on this device.
Money tools are arithmetic. Tip and bill split, discount, percentage, and sales tax with GST and VAT presets. The loan page is a standard monthly payment. Compound interest shows a future value. Salary converts hourly, weekly, monthly and annual pay using 52 weeks and the hours you enter.
Image tools never upload the file. Compress, PNG to JPG, and EXIF strip re-encode the picture in the tab, which drops camera metadata. The QR generator draws a code you can download. The reader decodes a picture or a camera frame locally. Color and contrast, and the aspect-ratio page, are for layouts and slides.
Home and school pages state their formula. BMI uses kilograms and metres, or pounds and inches. Calorie needs use the Mifflin–St Jeor equation times an activity factor. The due date is 280 days after the date you enter. Paint estimates wall area for a rectangular room. GPA uses a 4.0 letter scale. None of the health pages is medical advice.
Questions
Do these tools upload what I type or the photos I open?
No. They run in the page. Text, dates, photos and camera frames stay in the tab, and they are discarded when you close it unless you download a file.
Do I need an account?
No. Every tool is free, with no sign-up and no limit on how often you use it.
Are the health calculators medical advice?
No. BMI, calorie needs and the due date are standard formulas so you can see the number. They do not diagnose, prescribe or replace a clinician.
Why is there no weather or live exchange rate here?
Those need a network service. Currency already has its own pages. These fifty tools work from the page itself after it has loaded.