Track daily expenses by category with running totals, spending charts, budget comparison, and CSV export for record keeping.
Turn individual purchases into a dated, categorized spending record. For each expense, enter its amount and category; the tracker updates cumulative spending, groups expenses for the category chart, compares recorded spending with a budget, and can export the records as CSV. The important limitation is that the budget is only a comparison target. It does not fill gaps in the log or verify purchases against a bank statement, so every total depends on the expenses actually recorded.
A concrete input and expected output from the current implementation.
Input
Budget: $100.00 2026-08-01 | Food | $12.50 2026-08-02 | Food | $7.50
Expected output
Running totals: $12.50, then $20.00. Food total: $20.00. Total spent: $20.00. Budget remaining: $80.00.
The two expenses total $12.50 + $7.50 = $20.00. Both belong to Food, and subtracting $20.00 from the $100.00 budget leaves $80.00.
Record each purchase with a date, amount, and category. The running total represents the sum of the recorded expenses, while the chart groups those amounts by category. This gives two views of the same log: cumulative spending and the distribution of spending across the categories used.
When a budget is supplied, the comparison sets accumulated expenses against that target, showing how recorded spending relates to the available amount. CSV export creates a portable table of the expense records for later review. Processing stays in the browser and nothing is uploaded, which is relevant when the log contains personal financial details.
The tracker totals the expenses in its own log. A bank statement may also contain items you did not record, temporary authorizations, fees, credits, refunds, or transactions posted on different dates. Check for omissions and duplicates, then compare the same date range before treating the difference as an arithmetic error.
No, not by itself. The CSV preserves entered expense data in a portable table, but it does not prove that a purchase occurred or determine whether an expense is deductible. Keep receipts and statements where required, review category choices, and apply the accounting or tax rules relevant to your records.
The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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