Browser only
Financial calculator hub
Every calculator route on Plain Tools keeps the math in the browser. Open a category, jump into an exact-match scenario, and compare nearby inputs without uploading anything or sending financial numbers to a server.
Top calculator clusters
Start with a category hub when you want nearby scenarios, stronger internal linking, and a clearer path into the exact-match long tail.
Home-price, rate, term, and down-payment scenarios for first-pass housing math.
Salary, pay frequency, and state-level gross-to-net checks for take-home planning.
Contribution, match, return, and time-horizon scenarios for retirement planning.
Vehicle price, APR, term, and down-payment combinations for monthly cost checks.
Qualification-style DTI pages for income, housing, and debt obligations.
Savings and CD growth pages for deposit size, compounding, and term planning.
Trust, privacy, and related clusters
These supporting pages explain the privacy model behind browser-based workflows and connect the calculator hub to the rest of the site architecture.
See how Plain Tools documents privacy claims and browser-side processing behaviour.
Apply the same verification mindset to other utility workflows and browser tooling.
Jump from calculators into the broader utility, guide, status, and conversion clusters.