Percentage Calculator
Calculate percentages, percentage change, discounts and more.
All tools
Every tool is free and works without an account.
Calculators
Age Calculator
Find your exact age in years, months and days.
VAT Calculator
Calculate net, VAT and gross amounts for any tax rate.
Discount Calculator
Find the sale price and how much you save.
Rule of Three Calculator
Solve proportions with the direct or inverse rule of three.
Interest Calculator
Calculate compound interest with optional monthly deposits.
BMI Calculator
Calculate your body mass index and see your weight category.
Date Difference Calculator
Find the days, weeks, months and years between two dates.
Work Time Calculator
Add up your daily and weekly working hours including breaks.
Electricity Cost Calculator
Find out what an appliance costs to run per day, month and year.
Loan Calculator
Calculate the monthly payment, total interest and repayment plan of a loan.
Generators
QR Code Generator
Create QR codes instantly from any text or URL.
Password Generator
Create strong, random passwords in one click.
Lorem Ipsum Generator
Generate placeholder text by paragraphs, sentences or words.
Slug Generator
Turn any title into a clean, URL-friendly slug.
Username Generator
Generate catchy usernames for games, social media and accounts.
Text
Word Counter
Count words, sentences and paragraphs and estimate reading time.
Character Counter
Count characters with and without spaces, live while you type.
Case Converter
Change text to upper case, lower case, title case, camelCase and more.
Text Reverser
Reverse text by characters, words or lines.
Remove Duplicate Lines
Delete repeated lines from a list and keep the first of each.
Sort Lines
Sort lines alphabetically, by length or numerically, or shuffle them.
Markdown Preview
Write Markdown and see the rendered result live.
Text Diff Checker
Compare two texts and see added and removed lines.
Developer
JSON Formatter
Format, validate and minify JSON with clear error messages.
UUID Generator
Generate random UUIDs (v4) or time-ordered UUIDs (v7).
Image to Base64
Convert an image to a Base64 string or data URL.
Regex Tester
Test regular expressions with live highlighting and capture groups.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text.
URL Encoder / Decoder
Percent-encode and decode URLs and query parameters.
HTML Encoder / Decoder
Escape special characters as HTML entities or decode them back.
JWT Decoder
Decode a JSON Web Token and read its header, payload and expiry.
Hash Generator
Calculate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or files.
Unix Timestamp Converter
Convert Unix timestamps to dates and dates to timestamps.
Color Converter
Convert colors between HEX, RGB, HSL and HSV.
CSS Minifier
Minify CSS to reduce file size, or beautify it again.
HTML Formatter
Beautify messy HTML with clean indentation, or minify it.
URL Parser
Split a URL into protocol, host, path, query parameters and hash.
JSON Validator
Check whether JSON is valid and find the exact error.
JSON Minifier
Remove all whitespace from JSON to make it as small as possible.
Images
Image Compressor
Reduce image file size with adjustable quality, in your browser.
Image Converter
Convert images between PNG, JPG and WebP in your browser.
Image Resizer
Change the size of images by pixels or percent.
Image Cropper
Crop images with a free or fixed aspect ratio.
JPG to PNG Converter
Turn JPG images into lossless PNG files.
PNG to WebP Converter
Shrink PNG images by converting them to WebP.
WebP to JPG Converter
Convert WebP images to widely supported JPG files.
Favicon Generator
Create favicon.ico and all icon sizes from one image.
Files
Converters
Random
Random Number Generator
Pick random numbers in any range, with or without repeats.
Random Color Generator
Generate random colors and copy their HEX codes.
Random Name Generator
Generate random first and last names for characters, tests and more.
Dice Roller & Coin Flip
Roll dice from D4 to D100 or flip a coin.
Random Emoji Generator
Pick random emojis and copy them with one click.