All Tools
Every free ToolsPunk tool, in one place.
Percentage Calculator
Find a percentage of a number, work out what percent one value is of another, or calculate percentage change.
Open toolAge Calculator
Calculate exact age in years, months, and days between two dates.
Open toolBMI Calculator
Calculate your Body Mass Index using metric or imperial units.
Open toolWord Counter
Count words, sentences, paragraphs, and estimated reading time as you type.
Open toolCharacter Counter
Count characters with and without spaces, and check against common platform limits.
Open toolImage Compressor
Shrink image file size in your browser without uploading it anywhere.
Open toolImage Resizer
Resize an image to exact pixel dimensions, with optional aspect-ratio lock.
Open toolPassword Generator
Generate strong, random passwords with a live strength meter.
Open toolQR Code Generator
Turn any link or text into a downloadable QR code.
Open toolUnit Converter
Convert between length, weight, and temperature units instantly.
Open toolSimple Interest Calculator
Calculate simple interest and total repayment on a loan or deposit.
Open toolCompound Interest Calculator
See how your money grows with compound interest over time, at any compounding frequency.
Open toolDiscount Calculator
Find the sale price and savings for any percentage-off discount.
Open toolTip Calculator
Calculate tip amount and split the total bill between any number of people.
Open toolSales Tax Calculator
Calculate sales tax and the final price for any purchase.
Open toolProfit Margin Calculator
Calculate profit, profit margin, and markup from cost and selling price.
Open toolHourly Wage Calculator
Convert an hourly rate into weekly, monthly, and yearly pay.
Open toolBreak-Even Calculator
Find out how many units you need to sell to cover your fixed costs.
Open toolBMR Calculator
Calculate your Basal Metabolic Rate — the calories your body burns at rest.
Open toolBody Fat Calculator
Estimate body fat percentage using the U.S. Navy circumference method.
Open toolGPA Calculator
Calculate your cumulative GPA from letter grades and credit hours.
Open toolGrade Percentage Calculator
Convert points earned into a percentage grade and letter grade.
Open toolAverage Calculator
Calculate the mean, median, mode, and range of a list of numbers.
Open toolStandard Deviation Calculator
Calculate sample or population standard deviation and variance.
Open toolRatio Calculator
Simplify a ratio to its lowest terms.
Open toolFraction Simplifier
Reduce a fraction to its lowest terms and see it as a decimal.
Open toolRoman Numeral Converter
Convert between numbers and Roman numerals in both directions.
Open toolRandom Number Generator
Generate a random whole number within any range.
Open toolCase Converter
Convert text between uppercase, lowercase, title case, camelCase, snake_case, and more.
Open toolRemove Duplicate Lines
Clean up a list by removing duplicate lines while keeping the first occurrence.
Open toolSlug Generator
Turn any title into a clean, URL-friendly slug.
Open toolLorem Ipsum Generator
Generate placeholder text in words, sentences, or paragraphs.
Open toolBase64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to plain text.
Open toolURL Encoder / Decoder
Encode special characters for use in a URL, or decode an encoded URL.
Open toolJSON Formatter & Validator
Format, validate, and beautify or minify JSON data.
Open toolColor Converter (HEX / RGB / HSL)
Convert a color between HEX, RGB, and HSL formats.
Open toolHash Generator (SHA-256 & More)
Generate SHA-1, SHA-256, SHA-384, or SHA-512 hashes of any text.
Open toolUnix Timestamp Converter
Convert between Unix timestamps and human-readable dates.
Open toolMarkdown Previewer
Write Markdown and see a live-rendered HTML preview side by side.
Open tool