Useful tools for everyday tasks.

Percentage Calculator

Calculate percentages, percentage increases and decreases quickly.

Age Calculator

Calculate your exact age from your date of birth.

Date Difference Calculator

Find the number of days, weeks and approximate months between two dates.

Time Duration Calculator

Calculate elapsed time between two times, including an optional break.

Unit Converter

Convert common units of length, weight, temperature, volume and more.

Random Number Generator

Generate a random number within any range.

Password Generator

Generate strong random passwords in your browser.

Word Counter

Count words, characters, sentences and lines in your text.

Character Counter

Count characters with and without spaces.

Case Converter

Convert text to upper case, lower case, title case and sentence case.

Duplicate Line Remover

Remove duplicate lines from a block of text.

Line Sorter

Sort lines alphabetically or numerically.

Whitespace Cleaner

Clean extra spaces, blank lines and trailing whitespace.

Text Reverser

Reverse text, words or the order of lines.

JSON Formatter

Format, validate and minify JSON directly in your browser.

Base64 Encoder & Decoder

Encode or decode Base64 text in your browser.

URL Encoder & Decoder

Encode or decode URL text safely.

UUID Generator

Generate UUID v4 identifiers in your browser.

Image Resizer

Resize images in your browser and download the result.

Image Compressor

Compress JPEG and WebP images in your browser.

Color Converter

Convert between HEX and RGB colour values.

Lorem Ipsum Generator

Generate placeholder text for designs and prototypes.

Coin Flip

Flip a virtual coin instantly.

Dice Roller

Roll one or more six-sided dice.

Tip Calculator

Calculate a tip and split a bill between people.

Average Calculator

Calculate the mean average of a list of numbers.

Ratio Calculator

Simplify ratios and calculate proportional values.

Discount Calculator

Calculate sale prices, discounts and savings.

Markup Calculator

Calculate markup percentage, cost and selling price.

Aspect Ratio Calculator

Calculate image or video dimensions while preserving aspect ratio.

Reading Time Calculator

Estimate how long it takes to read a piece of text.

Sentence Counter

Count sentences in text quickly.

Find & Replace

Find text and replace it throughout a block of text.

Line Break Remover

Turn multi-line text into a single line or clean paragraph text.

Random Picker

Pick one random item from a list.

Random Color Generator

Generate a random HEX colour instantly.

Day of Week Calculator

Find the weekday for any date.

Unix Timestamp Converter

Convert Unix timestamps to dates and dates to Unix timestamps.

HTML Entity Encoder

Encode or decode HTML entities in your browser.

Binary Converter

Convert decimal numbers to binary and binary back to decimal.

Hex Converter

Convert decimal numbers to hexadecimal and back.

CSV to JSON Converter

Convert simple CSV data to JSON in your browser.

JSON to CSV Converter

Convert a simple JSON array of objects to CSV.

JPG PNG Converter

Convert JPG and PNG images locally in your browser.

Image Cropper

Crop an image to custom dimensions in your browser.

PRACTICAL GUIDES

Understand the tools.

Search-focused guides with formulas, examples and practical explanations related to the tools people use.

How to calculate percentages

Percent of a number, percentage increase and percentage decrease.

How word counting works

Words, characters, sentences and lines explained.

How to format JSON

Pretty-print, validate and minify JSON safely in your browser.

How to compress images

Learn how dimensions, formats and quality affect file size.

How to create strong passwords

Length, randomness and safer password habits.

How unit conversion works

Understand common conversion factors and temperature formulas.