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CattoExpense

Analyze your spending without giving up your privacy ๐Ÿฑ

Upload your bank statement. Get instant insights. No account, no server, no data stored โ€” everything runs in your browser. ๐Ÿ”’โœจ

Drop your bank statements here

We accept PDF, CSV, and TXT. Max file size 25MB.

100% Local Processing No data sent to servers Stays in your browser

No Server

Your file is read locally in the browser โ€” it never leaves your device. There is no backend.

No Tracking

No cookies, no analytics, no account needed. We don't know who you are.

No Storage

Close the tab and all data is gone. Nothing is saved anywhere.

How your data flows

Everything happens inside your browser. Nothing crosses the line.

Your Browser โ€” Offline
1
You pick a file
PDF / CSV / TXT โ€” read by FileReader API
2
Parsed in-browser
JavaScript extracts transactions locally
3
Analyzed on-device
Categories, charts, insights โ€” zero network
4
Gone when you close
Close the tab and all data vanishes

What we'll never do

โ€”Send your files to any server
โ€”Use cookies or tracking scripts
โ€”Require an account or login
โ€”Collect analytics or telemetry
โ€”Store data in any database
โ€”Save anything after you close the tab

Personal side project โ€” not financial advice. Use at your own risk. Disclaimer