Same minimums on every debt — the only difference is which one your spare money kills first.
How it works: each month interest is added to every balance, minimums are paid on all debts, and every spare dollar — your extra plus the freed-up minimums of any debt you've cleared — is thrown at one target. Snowball demolishes the smallest balance first (quick wins that keep you going). Avalanche demolishes the highest APR first (least interest, the mathematically optimal path). Everything is computed in your browser; nothing about your debts leaves this page.