Excel calculators & converters
Every tool runs entirely in your browser — even the file converters never upload your data. No login, no email gate: start typing and read the result live.
CAGR Calculator
Corporate Finance Suite
Standard Deviation
Variance Calculator
Percentage Change
Loan & Mortgage
Corporate Finance Suite
Depreciation
Corporate Finance Suite
Amortization Schedule
Corporate Finance Suite
ROI Calculator
Corporate Finance Suite
Gantt Generator
Project Manager's Toolkit
Pie-% Helper
Executive KPI Dashboard Series
CSV to Excel Converter
Excel to CSV Converter
Excel to JSON Converter
Column Letter ↔ Number
Date Serial Converter
Compound Interest
Corporate Finance Suite
NPV & IRR Calculator
Corporate Finance Suite
Break-Even Calculator
Corporate Finance Suite
Weighted Average
Date Difference
Case Converter
Duplicate Remover
Formula Generator
Data Cleaner
Quick Pivot Summarizer
Executive KPI Dashboard Series
Formula Explainer
Age Calculator
Hours & Duration Calculator
Project Manager's Toolkit
Workday Calculator
Project Manager's Toolkit
Compare Two Lists
Percentage Calculator
Average, Median & Mode
Margin & Markup Calculator
Corporate Finance Suite
Text to Columns Splitter
JSON to Excel Converter
CSV to JSON Converter
Combine Two Columns
First & Last Name Splitter
Remove Extra Spaces
List Sorter
Character & Word Counter
Random Numbers & List Shuffler
Correlation & Trendline
Executive KPI Dashboard Series
Z-Score Calculator
Add or Subtract Dates
Frequency Table
Executive KPI Dashboard Series
Week Number & Quarter
Drop-Down List Builder
Excel Viewer
Cell Counter
Regex Extractor & Tester
Use these tools before you commit a spreadsheet result
Private by default
The calculators and converters run in your browser, so quick checks, pasted lists and selected files stay on the page while you validate the result.
Built for spreadsheet work
Each tool maps to a common Excel or Google Sheets task: finance models, statistics, date handling, CSV conversion, chart preparation and text cleanup.
A cleaner handoff
Use the live result as a reference, then copy the number, formula pattern or converted file into the workbook you are actually delivering.
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