List your debts, add whatever extra you can throw at them each month, and instantly compare the Snowball and Avalanche strategies — months to debt-free, total interest, and payoff order. Everything runs entirely in your browser; nothing is sent anywhere.
Snowball targets your smallest balance first for quick wins; Avalanche targets your highest APR first to minimise interest. Both pay every minimum, then pour the extra plus freed-up minimums onto the current target debt. Estimates assume fixed APRs and no new borrowing.