Split bills, not friendships. Add what you spent, see who pays whom, settle up.
Built for hostel rooms, road trips and chai runs. Free, no ads, no trackers.
Open the app → · Report a bug · Request a feature · Contribute
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Groups
- Create a group and invite friends with a link that works well over WhatsApp
- Turn the invite link off once everyone's in, so a forwarded link stops working
- Admins can rename the group, remove members and delete it
Expenses
- Split equally, by exact amounts, or by percentage
- Edit or delete an expense; everyone's balances update instantly
- Changes appear live on every phone in the group, no refresh needed
- Dark by default, with a light mode a tap away
Settling up
- Balances are simplified into the fewest payments: "Rahul pays Akshat ₹300"
- Pay however you usually do, then mark it paid; part payments and undo included
- No rounding drift. All maths runs in whole paise, so ₹100 split three ways is ₹33.34 + ₹33.33 + ₹33.33, and a group's balances always sum to exactly zero.
- Fewest transfers. A group of n people never needs more than n − 1 payments to settle completely.
- Nobody disappears from the ledger. Someone who leaves with money still to pay or get back stays visible, tagged left group, until they're settled.
- Repayments aren't spending. Paying a friend back never inflates the group's spending totals.
- Every permission is enforced on the server by Firestore security rules: only members can see a group's expenses, and only the right people can change them. The rules have their own test suite that runs on every pull request.
- Your email stays private. Other members see only your name and photo. Your email is never stored where they can read it.
- Private pages stay out of search engines. Group and invite pages are never indexed.
- No ads, no analytics, no trackers.
Found a vulnerability? Please report it privately; see SECURITY.md.
| Framework | Next.js 16 (App Router), React 19 |
| UI | Tailwind CSS v4, shadcn/ui |
| Auth & data | Firebase Authentication (Google), Cloud Firestore |
| Testing | Vitest, Playwright end-to-end, Firebase emulator for the security rules |
| Hosting | Vercel |
Contributions are welcome, from bug reports and ideas to code. Start with CONTRIBUTING.md: it covers the branch workflow, running the app in demo mode without any setup, and the checks every pull request needs to pass. Please also read the Code of Conduct.
Looking for something to work on? Check the open issues.
Using Split-It-Wise? Just open split-it-wise.vercel.app. This repository is for developing the app. Running it locally is for contributors working on a change; it isn't a supported way to host your own copy.
MIT © Akshat Patil and contributors.
The name Split-It-Wise and its logo identify this project. If you publish a fork, please give it a different name and logo so people don't mistake it for this app.