Expense Trend Analyser

Upload your bank CSV export, map merchants to categories, and get instant charts of where your money goes each month.

All processing happens in your browser — your data never leaves your device
1
Upload File
2
Map Categories
3
View Report
This is an example report. It uses made-up sample transactions, so explore freely. Nothing here is saved.
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Drag & drop your CSV file here
ANZ, CBA, NAB, Westpac and more — export as CSV from your bank's app
Read in your browser. Your file is never uploaded.
Multiple accounts or joint expenses? Use the File Organiser first →
We couldn't auto-detect your CSV columns. Please map them below:
Mappings persisted
Your category mappings are saved in your browser and remembered across sessions — even after closing the tab or restarting your computer. They'll only be lost if you clear your browser data or use a private/incognito window.
Swipe right to set categories
Merchant Transactions Total Spent
Category
→
Monthly Spending
Toggle categories
Category breakdown
Swipe right to see all columns
Category Total Avg / Month % of Spend Transactions

Frequently Asked Questions

How the tool works, and what happens to your data.

How does the Expense Trend Analyser work?

Upload a CSV export from your bank, check the category suggested for each merchant, then generate your report. You get a chart of your spending by month or by week, plus a breakdown table showing the total, monthly average, share of spend and number of transactions for every category.

Is my bank data uploaded anywhere?

No. Your file is read and processed entirely in your browser, and your transactions are never sent to a server. Your category mappings are stored in your own browser so the tool can remember them next time.

Which banks does it work with?

It works with CSV exports from ANZ, CBA, NAB, Westpac and many other banks. If the tool can't detect the columns in your file automatically, you can tell it which columns hold the date, description and amount.

Do I have to categorise every merchant myself?

No. Common merchants such as Woolworths, Coles and Aldi are matched to a category automatically, and you can change any suggestion. Your choices are saved in your browser and remembered across sessions, unless you clear your browser data or use a private window. You can also download your mappings as a file and import them on another device.

Can I use my own categories or leave some spending out?

Yes. You can add custom categories alongside the built-in ones such as Groceries, Utilities and Insurance, and you can skip a merchant so it is excluded from the report altogether.

Can I save or share my report?

Yes. You can download the breakdown as a CSV, or print it and save it as a PDF with the chart and category table included.

What if I have several accounts or shared expenses?

Start with the Finance File Organiser. It merges statements from multiple accounts, lets you flag joint expenses, and sends the cleaned transactions straight to the Expense Trend Analyser.