CashFlow — Offline Income, Expense & Tax Tracker for Freelancers

See your real net profit, know exactly how much to set aside for tax, and track every income and expense — all in your browser, no account, no subscription, nothing uploaded.

CashFlow is a single self-contained HTML file that runs 100% offline. Add a transaction, set your tax rate, and your profit and tax figure update instantly. Works on Windows, Mac and Linux without any install.

✔ Income & expense tracking — add, edit and delete transactions

✔ Net profit dashboard — income, expenses and true profit at a glance

✔ Automatic tax set-aside — your rate × net paid income, updated live

✔ Spending by category — see your biggest cost areas

✔ Monthly income-vs-expense chart — spot trends across the year

✔ Paid / Pending status — separate confirmed from expected cash

✔ CSV export — UTF-8, opens cleanly in Excel or Google Sheets

✔ 12 currencies — USD, EUR, GBP, JPY, TWD and more

✔ EN + Traditional Chinese — full bilingual support

✔ Works offline — zero network requests, your financial data never leaves your computer

One-time purchase — $12, no subscription, yours forever.