Tools should respect your time.

SolveKit is a growing library of focused utilities for decisions, calculations, conversions, and everyday digital work. Each page exists to complete one job quickly.

Our standard is simple: a useful result in under ten seconds, clear assumptions, accessible controls, and no registration wall. Tools that handle sensitive text or files run locally whenever the browser can do the work safely.

We do not publish filler articles to manufacture page count. New pages are added when they provide a distinct tool, dataset, or workflow that someone can actually use.

How reviewed tools are built

Priority calculators publish their formula or processing steps, assumptions, a worked example, a review date, and primary sources where an external rate or rule matters. Automated regression cases cover the commercial formulas most likely to influence a pricing decision.

A page can remain available while being temporarily excluded from search if its edge cases or sourcing need more work. Fee defaults are starting points, not claims that one rate applies to every country, account, or transaction.

The complete review and corrections process is published in our editorial policy.

Corrections and funding

Advertising or a clearly labelled affiliate link may fund the service after the answer is delivered. A commercial relationship does not change tool inputs, formulas, rankings, or results. To report an accuracy issue, send the page URL and reproducible inputs through the contact form.