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Free, fast, and private. Create QR codes, format data, transform text, and more — all in your browser.
Popular Tools
JSON Formatter + Validator
Beautify, minfiy and validate your JSON data.
QR Code Generator
Generate high-quality QR codes for URLs and text instantly.
Compound Interest Calculator
Calculate how your money grows with compound interest and monthly contributions. See the power of compounding.
Currency Converter
Convert between currencies with approximate rates. Enter custom rates for accuracy.
Discount Calculator
Calculate stacking discounts with percentage and fixed amount. See your final price and total savings instantly.
Loan Installment Calculator
Calculate monthly loan payments with flat or effective interest rates. Compare total payment and interest.
Markup & Margin Calculator
Calculate markup percentage and profit margin from cost and selling price. Understand the difference between markup and margin.
Age Calculator
Calculate your exact age in years, months, and days. See your zodiac sign and countdown to next birthday.
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