Can I share a split with my group?

Yes. Share link encodes the whole split into the link itself: people, expenses, everything. Anyone who opens it gets an editable copy on their own device, with no account. You can also copy a plain-text summary to paste into any chat.

How should roommates split rent fairly?

There are three defensible methods: equal shares, income-proportional (each pays the same fraction of their income), and custom weights for unequal rooms. sanesplit's rent tool calculates all of them and shows how each person's share compares to an equal split.

What happens to the leftover cent when a bill doesn't divide evenly?

sanesplit never invents or loses money. Amounts are computed in exact cents using the largest-remainder method: everyone pays the fair floor amount and the leftover cents go to the people with the largest remainders. The breakdown always adds up to the exact total, and the tool shows who pays the extra cent.

Does sanesplit work offline?

Yes, fully. After your first visit the whole app is stored on your device, so it opens and computes with no connection at all. It can also be installed as an app (PWA) from the browser, with no account and no upload either way.

sanesplit — Split Bills, Group Expenses & Rent Fairly. Free, No Account.

Q: Is sanesplit really free?

Yes. There is no account, no premium tier, no daily expense limit and no feature paywall. A static page costs almost nothing to run. There are no affiliate or partner links on this site today; if one is ever added, it will be visibly labelled at the link.

Q: How does the settle-up plan stay so short?

sanesplit computes each person's net balance (paid minus their share), then repeatedly matches the largest debtor with the largest creditor. This settles any group of n people in at most n−1 payments. A 6-person trip never needs more than 5 transfers.

Q: How is this different from expense-splitting apps?

Most apps require everyone to install and sign up, and free tiers often cap how much you can log per day. sanesplit is a web page: unlimited expenses, no sign-up for anyone, no tracking, and your data never leaves the browser. The trade-off is that sanesplit does not sync between devices automatically; you share a split by sending a link.

Your split

The real tool. Autosaved on this device, private to you.

People

Add an expense

What was it?

Amount

Paid by

Split between

How to split

Expenses

Balances

Settlement

Your data

Everything lives on this device. Take it with you whenever you like.

How the settle-up works

Accounting done properly, in exact cents, on your device.

Every expense becomes exact-cent shares

Equal, shares, percent or exact amounts: each person's share is computed in integer cents using the largest-remainder method. Leftover cents go to whoever has the biggest remainder, so shares always sum to the exact total. No floating-point drift, ever.

Shares collapse into one net balance per person

For each person: everything they paid minus everything they owe. Positive means the group owes them; negative means they owe the group. The "I got the taxi, you got dinner" noise cancels out here.

Debts are matched largest against largest

The biggest debtor pays the biggest creditor as much as possible; repeat until every balance is zero. This settles any group of n people in at most n−1 payments. A 6-person, 40-expense trip never needs more than 5 transfers.

The settlement becomes a message, a link, or paper

Copy the plan for the group chat, share the whole split as a link (the data travels inside the link, not through a server), or print a one-page statement. As transfers happen, tap Paid: each payment is written into the ledger and balances fall to zero.

Four ways to split an expense

Fair depends on the situation. Pick per expense.

Equally

Everyone in the expense pays the same. Right for shared meals, fuel, groceries.

€100 ÷ 3 → 33.34 / 33.33 / 33.33

By shares

Weight people by units: nights stayed, seats in the car, adults and kids. A couple counts as 2 shares.

€300 at 2:1 → 200.00 / 100.00

By percent

Fix each person's percentage. Useful for income-proportional household costs or agreed uneven arrangements.

€80 at 70/30 → 56.00 / 24.00

Exact amounts

Type what each person actually owes, straight from an itemised receipt. sanesplit checks the sum.

must equal the total, to the cent

Do you need an expense app?

For most groups, most of the time: no. The comparison, honestly.

	sanesplit	Typical expense app (free tier)	Shared spreadsheet
Account required	Never, for anyone	Everyone signs up	Whoever owns the sheet
Limits on logging	None	Daily caps are common on free tiers	None
Tracking	None: no analytics, no pixels	Analytics and ad trackers are common	Depends on the provider
Where your data lives	Your device only	Their servers	The provider's cloud
Minimal-payment settle-up	Built in, ≤ n−1 payments	Sometimes built in	You do the algebra
Cross-device sync	By share link (manual)	Automatic	Automatic
Ready at the table	Open a link, start typing	Everyone installs first	Fiddly on a phone

Free tiers of popular expense apps increasingly cap daily logging and paywall core features; check current terms before trusting a long trip to one. If your group logs expenses daily for months and needs automatic sync, a synced app earns its place. For a trip, a dinner or a flat, a link beats an install.

Private by architecture

Your money talk stays between you.

sanesplit is a static page. There is no server-side code, no database, and no way for us to see your names or numbers even if we wanted to. Your splits live in your browser's local storage. Share links carry the data inside the link itself, directly from you to your group.

That is the architecture, not a promise.

no account no cookies no upload no tracking pixels no email asked

Questions

Is sanesplit really free?

Yes. No account, no premium tier, no daily limit, no feature paywall. A static page costs almost nothing to run. There are no affiliate or partner links on this site today; if one is ever added, it will be visibly labelled at the link.

Where is my data stored?

On your device, in your browser's local storage. Nothing you type is uploaded and there is no database behind this site. Clearing your browser's site data deletes your splits, so use Download backup or a share link when you need a copy.

How does the settle-up plan stay so short?

Each person's net balance is what they paid minus their share. sanesplit then matches the largest debtor with the largest creditor until everything is zero. That settles any group in at most one payment less than the number of people involved.

How is this different from expense-splitting apps?

Most apps need everyone to install and sign up, and free tiers often cap how much you can log per day. sanesplit is a page: no account for anyone, no limits, and your data stays on your device. The trade-off: no automatic sync between devices. You share by link instead.

Can the others in my group edit the split too?

Send them a share link and they get a full editable copy on their device. One person keeping the ledger and sharing the settlement works best for most groups. For continuous two-way sync across months, a synced app is the better tool.

What about different currencies on one trip?

Keep one ledger per currency. Splits are cheap: make "Portugal EUR" and "Morocco MAD", or convert as you enter. Automatic exchange rates would require calling a rate server, and this site sends no requests with your data.

What happens to the leftover cent?

The largest-remainder method assigns it deterministically, and the tool shows exactly who pays one cent more. Every breakdown reconciles to the exact total.

Does it work offline?

Yes, fully. After your first visit the whole app is stored on your device, so it opens and computes with no connection at all. Your data was already local; now the app is too.

Can I install it like an app?

Yes. On Android and desktop Chrome use the Install button or the browser's install icon; on iOS Safari use Share → Add to Home Screen. Installing is optional. The website does everything the installed app does.