FREE BUSINESS TOOLS / stamp moke
Free Business Tools
Practical calculators and text utilities for work, ecommerce and marketing. No signup required.
Business / EC / Marketing
Small, fast tools for calculations, text cleanup, ecommerce operations and advertising.
日Date CalculatorAdd or subtract days and calculate the difference between two dates.→粗Gross Profit CalculatorCalculate gross profit, margin and cost ratio from selling price and cost.→字Character & Line CounterCount characters, characters without spaces and lines in real time.→重Remove Duplicate LinesRemove duplicate lines while keeping the original order.→〒Japan Postal Code LookupLook up Japanese addresses from postal codes and postal codes from addresses.→文Mojibake RepairTry to repair common UTF-8 text encoding corruption in your browser.→PWPassword GeneratorGenerate random passwords with your preferred length and character types.→&HTML Entity ConverterEncode and decode HTML entities.→年Age & Birth Year CalculatorCalculate age from a birth date or estimate a birth year from a current age.→↕Text SorterSort lines ascending, descending, numerically or randomly.→SKUSequential SKU GeneratorGenerate many SKU codes from a prefix, start number, digits and quantity.→AaFull-width to Half-width ConverterConvert full-width Latin letters, numbers and spaces to half-width.→SPWhitespace CleanerRemove leading, trailing and repeated spaces and line-end whitespace.→税Tax Included / Excluded CalculatorCalculate tax-included, tax-excluded and tax amounts with a selected rate.→%Price Change Rate CalculatorCalculate price increase/decrease rate and amount from before and after prices.→RROAS CalculatorCalculate return on ad spend from advertising cost and attributed revenue.→ROIROI CalculatorCalculate ROI from investment and profit.→KPICPA / CVR / CTR CalculatorCalculate common advertising KPIs including CPA, CVR and CTR.→