About BillSpilt

BillSpilt is a free bill splitter built for roommates and shared households. It exists to solve one specific, universally annoying problem: when several people share a home, the money gets tangled fast. Rent, internet, the electric bill, a grocery run, the shared streaming subscription — someone always covers something, and keeping track of who owes whom turns into group-chat math nobody enjoys.

We built BillSpilt to make that math disappear. You log a shared expense in a few seconds — who paid, how much, how it's split, and who's included. From there the app keeps a running balance for every person in the household, so anyone can open it and see, at a glance, whether they're owed money or owe it. When it's time to square up, BillSpilt nets all the debts and works out the fewest possible payments that clear them — four roommates might settle everything with just two transfers instead of a dozen.

The whole thing runs in your browser and installs to your home screen like a native app, so there's nothing to download from an app store. It even works offline: add an expense with no signal and it syncs automatically when you reconnect.