Make sense of money.
Free, interactive tools and plain-language explanations to help you understand how money actually works — without the jargon, the upselling, or the asterisks.
Tools to make different financial questions concrete.
Each tool turns an abstract financial decision into something you can poke at, see, and feel. Pull a slider, watch the numbers move, learn what's actually happening.
Mortgage tool
LiveSee what offset accounts, extra repayments, and rate changes really do over the life of a home loan. Includes Australian stamp duty and first-home-buyer concessions.
Salary explainer
LiveSee exactly where each dollar of pay goes — tax, super, take-home — and what a pay rise actually changes month-to-month.
Savings & investing
LiveSet a savings goal, project your super, and compare saving vs investing — and see what compounding really does over time.
Kids' fund
SoonHow much could a small monthly contribution grow into by the time your child turns 18? See it for different starting ages and amounts.
Learn
BetaShort, plain-language explainers on the things money people don't always volunteer. Offset accounts live now — inflation, compounding, stamp duty all coming.
A space to think, not a place to buy.
Knowledge is leverage.
The people profiting from your money decisions know how this stuff works. Capibrain helps you understand it too — so the conversations you have feel different.
Built for learning, not advice.
Capibrain isn't selling a loan, a fund, or a recommendation. It's a sandbox to poke at numbers and see what happens. Real decisions deserve real conversations with real professionals.
Free, no signup, no tracking.
Nothing you type is saved anywhere — not on your device, not on a server, not in cookies. Your inputs vanish when you close the tab. The site fetches public data, that's it.