PUBLISHED TOOL DIRECTORY
Useful tools, ready when you are.
Every card opens a working workspace. Pick the job, use the tool, and move on.
LIVE DIRECTORY
Pick a tool. Get it done.
Duotone Maker
Map image luminance between two selected colours.
Duplicate Line Remover
Keep the first occurrence of each whole line with explicit case and blank-line rules.
Duplicate PDF Pages
Copy selected pages immediately after their originals while retaining the complete document.
Duplicate Ticket Incidence Rate Calculator
Measure reviewed tickets linked as duplicates under one rule.
DuPont Analysis Calculator
Decompose return on equity into margin, asset turnover, and equity multiplier.
Duration Unit Converter
Convert fixed elapsed intervals through seconds without applying calendar or timezone rules.
Dynamic Pressure Calculator
Calculate dynamic pressure with guided inputs, visible equations, substituted working, and model assumptions.
Dynamic Viscosity Converter
Convert dynamic viscosity through pascal seconds without mixing kinematic viscosity.
Dyslexia-friendly Text Formatter
Create a bounded, browser-local dyslexia-friendly text formatter with visible assumptions, review guidance, and downloadable output.
Early Payment Discount Calculator
Calculate a dynamic simple discount for each day an invoice is paid early.
Earned Income Credit Calculator
Estimate a planning credit as a percentage of eligible income.
Earnings Yield Calculator
Express common earnings as a percentage of common-equity market value.