Popular tools

Compound Interest CalculatorThe website supports the calculation of "single interest" and "compound interest", and provides comparison charts and chart downloadsBMI CalculatorEnter your height and weight in ft/lb or cm/kg to get your BMI, your WHO weight category and your healthy weight range.

Everyday

BMI CalculatorEnter your height and weight in ft/lb or cm/kg to get your BMI, your WHO weight category and your healthy weight range.

Finance

CAGR CalculatorOnly need to fill in the "Initial Investment Input", "Final Maturity Value", and "Length of Time in Years" to calculate CAGR and draw charts and provide downloadsCompound Interest CalculatorThe website supports the calculation of "single interest" and "compound interest", and provides comparison charts and chart downloads

Barcode & QR

QR Code DecoderUpload a QR Code file to convert and restore the QR code content to URL, SMS, text, etc.QR Code GeneratorSimple, fast and free to create and generate QR code

Generators

Password GeneratorCreate strong random passwords with custom length, letters, numbers and symbols; see the strength and copy each one.Random Number GeneratorPick random numbers in any range, with or without repeats and sorted if you like; copy or download the results.UUID GeneratorGenerate UUID v4 or v7 (GUID) in bulk: uppercase, no hyphens or braces, as lines, a JSON array or a comma list; copy each one.

Converters

Binary, Decimal & Hex ConverterConvert binary, octal, decimal and hex instantly – no digit limit, plus a binary/hex calculator.Unix Timestamp ConverterConvert Unix timestamps (seconds or milliseconds) to dates and back, in any time zone, with UTC and ISO 8601.

Developer

Base64 Encode / Base64 DecodeConvert text, images and files to and from Base64 – supports data URI and URL-safe.URL Encode / URL DecodeConvert URLs and text to and from %XX percent-encoding – with URL parameter breakdown.What Is My IPSee your public IP address (IPv4 or IPv6) and country instantly, with one-click copy.

Math

LCM and GCD CalculatorEnter 2 to 10 whole numbers to get the LCM and GCD (GCF) instantly, with prime factorization, ladder method and Euclidean algorithm steps.Prime Factorization CalculatorEnter a whole number to get its prime factorization, all factors and the number of factors, and check whether it is primeStandard Deviation CalculatorPaste numbers or an Excel column to get the sample and population standard deviation, variance and mean, with every step