Ready to use
Math, Statistics & Probability
Open tool Proportion Sample Size Calculator
Calculate proportion sample size with guided inputs, visible equations, substituted working, and model assumptions.
Home/All tools
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.
Ready to use
Sales & CRM
Open tool Proposal Outline Builder
Create a bounded, browser-local proposal outline builder with visible assumptions, review guidance, and downloadable output.
Ready to use
Sales & CRM
Open tool Proposal Pricing Calculator
Create a bounded, browser-local proposal pricing calculator with clear inputs, guided review, and a practical output.
Ready to use
Calculators
Open tool Prorated Paycheck Calculator
Prorate one salary paycheck by eligible versus scheduled workdays.
Ready to use
Health & Wellness
Open tool Protein Intake Calculator
Create a bounded, browser-local protein intake calculator with visible assumptions, review guidance, and downloadable output.
Ready to use
Calculators
Open tool PTO Accrual Calculator
Calculate PTO earned from annual allowance and eligible hours worked.
Ready to use
Calculators
Open tool PTO Payout Calculator
Estimate gross eligible unused-leave payout under an entered policy percentage.
Ready to use
Downloaders & Public Media
Open tool Public Domain Audio Finder
Prepare a browser-safe public-media workflow for public domain audio finder with visible permission and privacy boundaries.
Ready to use
Downloaders & Public Media
Open tool Public Domain Image Finder
Prepare a browser-safe public-media workflow for public domain image finder with visible permission and privacy boundaries.
Ready to use
Downloaders & Public Media
Open tool Public Domain Video Finder
Prepare a browser-safe public-media workflow for public domain video finder with visible permission and privacy boundaries.
Ready to use
Downloaders & Public Media
Open tool Public Image URL Downloader
Prepare a browser-safe public-media workflow for public image url downloader with visible permission and privacy boundaries.
Ready to use
Downloaders & Public Media
Open tool Public PDF Downloader
Prepare a browser-safe public-media workflow for public pdf downloader with visible permission and privacy boundaries.