Split BillsEffortlessly
Free expense splitter — no install, no sign-up
Perfect for
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Why WariSaku?
No Sign-up, Instant Share
No account needed. Share a URL and everyone joins instantly.
Minimize Settlements
Auto-optimizes to minimize the number of money transfers.
Weighted Split
Set contribution multipliers for senior/junior or any situation.
16 Currencies
Record expenses in local currency on any trip abroad.
Group History
Past groups are saved in your browser for easy access.
JPYC Payments & Tips
Settle with members directly in JPYC (a JPY stablecoin), or tip the developer with JPYC.
FAQ
Do I need to sign up or install an app?
No. Just open the URL in your browser — no installation, no account needed. Works on any device.
Is it free?
Completely free. No subscription, no fees of any kind.
How many people can use it?
2 to 20 people. Works for trips, dinner parties, shared housing, and more.
Why are there fewer payments to make?
WariSaku uses a minimum-settlement algorithm that calculates the fewest number of transfers needed to settle all debts.
Is my personal information safe?
No personal info is collected. Only group member names and amounts are stored — nothing identifiable.
Tips & Articles
Practical guides for trips, parties, shared living, and more
WariSaku Complete Guide: Start Splitting Costs in Seconds — No Account Needed
Learn how WariSaku works in 4 steps. See how it auto-minimizes payments for groups of 5 from up to 10 transfers down to at most 4, plus weighted splitting, 16 currencies, and more.
Group Travel Made Easy: 3 Real Scenarios Where WariSaku Handles the Splitting
Hot spring weekends, barbecues, ski trips — splitting costs in a group gets complicated fast. See how WariSaku compresses settlement to the minimum number of transfers across three real group travel scenarios.
International Trip with Friends? Here's How to Handle the Currency Chaos
Splitting costs abroad gets complicated when you're paying in multiple currencies across multiple days. Walk through a 4-person Seoul trip simulation and see how WariSaku auto-converts currencies and minimizes transfers.
Theme Park with Friends: The Smart Way to Split Every Ticket, Meal, and Souvenir
A day at a theme park means 6–10+ separate payments from open to close. Here's how to decide what's shared vs. personal, track it all without stopping the fun, and wrap up in 3 transfers or fewer.
Try It Now
No sign-up · Completely free
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