Every ToolNest tool, in one directory
Search the full roadmap below, or jump straight into a category. Tools marked Soon are in active development — the directory is published first so you can see exactly what is coming and bookmark what you need.
Instant, in-browser
Every calculator runs locally in your browser — no uploads, no waiting on a server round trip.
Nothing stored
Your balances, income and tax figures are processed on your device. We do not keep copies of your input.
10 live calculators
Mortgage, loans, refinancing, debt payoff, savings and tax — grouped so you can find the right calculator in two clicks or fewer.
Tool directory
Showing 10 of 10 live calculators.
Finance & Tax
High-accuracy loan, tax and savings calculators
Mortgage Payment Calculator
LiveCalculate monthly mortgage payments with taxes, insurance, PMI, HOA and extra payments, plus a full amortization schedule.
View detailsAuto Loan Calculator
LiveEstimate car loan payments including trade-in value, sales tax, dealer fees and term comparisons.
View detailsPersonal Loan Calculator
LiveWork out personal loan repayments, origination fees and the true APR you actually pay.
View detailsCompound Interest Calculator
LiveProject savings and investment growth with monthly contributions, any compounding frequency and inflation adjustment.
View detailsSales Tax & VAT Calculator
LiveAdd or remove sales tax and VAT using built-in rates for all 50 US states, the UK and all 27 EU countries.
View detailsMortgage Refinance Calculator
LiveCompare your current mortgage with a refinance, find the exact break-even month and lifetime interest savings.
View detailsHELOC Calculator
LiveCalculate your home equity line of credit limit from LTV, then model draw-period and repayment-period payments.
View detailsMortgage Affordability Calculator
LiveFind how much house you can afford using the official 28/36 DTI rule, with FHA and VA presets.
View detailsCredit Card Payoff Calculator
LiveSee how long minimum payments really take, then compare fixed payments and avalanche vs snowball strategies.
View detailsCredit Card Balance Transfer Calculator
LiveCompare a 0% balance transfer against your current card, including the transfer fee and post-promo APR.
View details
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