Tools
Spreadsheet tools that run in your browser
Your entries stay on your device.
AI and spreadsheet tools
AI Data Analyst
Turn a workbook into a Snapshot sheet and a Dashboard sheet.
Open toolAI Formula Generator
Describe a job in plain words and get Excel and Sheets formulas.
Open toolFormula Explainer
Paste a formula and see what each function does.
Open toolError Fixer
Find the cause and fix for any spreadsheet error.
Open toolExcel to Sheets Converter
Flag functions that do not move, and rename the safe ones.
Open toolPractice Sandbox
A small live worksheet that runs real formulas in your browser.
Open toolCalculators
Finance
Loan EMI Calculator
Monthly payment, total paid and total interest.
CalculateFinanceCompound Interest Calculator
Future value of a lump sum.
CalculateBusinessMargin and Markup Calculator
Profit, margin and markup from cost and price.
CalculateBusinessBreak-even Calculator
Units and sales needed to cover fixed costs.
CalculateTaxVAT Calculator
Add VAT to a net amount, or take it out of a gross amount.
CalculateDate and TimeWorkdays Calculator
Working days between two dates, for your weekend pattern.
CalculateComing later
Tax and payroll rules change, so these tools will follow once checked against official sources.
Invoice GeneratorSalary and PayslipEnd-of-service GratuityLeave EncashmentCSV Cleaner