All Tools
Sales Tax Calculator
Easily calculate sales tax with our free online sales tax calculator. Get accurate results for any location and amount instantly!
Confidence Interval Calculator
Calculate confidence intervals for your data. Free & easy to use. Determine margin of error & population parameters with our online tool.
Average-calculator Tool
Calculate the average (mean) of numbers quickly & easily with our online average calculator. Free, accurate, and simple to use!
Percentage Calculator
Free online percentage calculator to find percentages, calculate percentage increase/decrease, and solve % problems easily.
Age Calculator Tool
Calculate your age in years, months, & days. Get birthday countdowns and see age in different units. Easy & accurate age calculator!
Universal Image Converter
Convert JPG, PNG, GIF, and WebP instantly with this free Universal Image Converter. Resize, compress, and optimize images offline in your browser.
Dates to Roman Numerals Converter
Easily convert any date to its Roman numeral equivalent with our free online converter. Simple and accurate conversion for historical analysis or fun!
Password Decryption Utility
Encrypt and protect your passwords with our easy-to-use Password Encryption Utility. Keep your sensitive information safe and secure.
Password Encryption Utility
Encrypt and protect your passwords with our easy-to-use Password Encryption Utility. Keep your sensitive information safe and secure.
Package json Auditor
Audit your package.json online. Detect outdated, unused, or vulnerable dependencies. Fix metadata issues and export a clean, secure file instantly.
JSON Mock Data Generator from Schema
Generate mock JSON from schema instantly. Supports constraints, enums, arrays, and nested objects. Create realistic test data for APIs, UIs.
JSON i18n - Compare and Merge Translations
Compare and merge JSON translation files online. Find missing keys, validate ICU placeholders, and export clean locale files. Fast, private.