Finance tools — 8 free, in your browser
Personal finance, investment, tax, and loan calculators — every formula transparent, every assumption editable.
Most popular
All finance tools
Budget Planner
Income minus expenses → savings rate and where your money goes.
Mortgage Calculator
Monthly payment with taxes and insurance, total interest, full schedule.
Loan Comparison
Compare two loans side by side — see which costs less over the term.
Investment Growth
Project compound growth with regular contributions — and see real return.
Retirement
How much will you have, and how long will it last?
Savings Goal
Reach your savings target with the right monthly deposit and timeline.
Income Tax
Estimate US federal income tax — brackets, marginal & effective rates.
What people do with the finance tools
- ·Compute mortgage payments with full amortization
- ·Compare loan offers side-by-side
- ·Forecast investment returns with compound interest
- ·Estimate income tax across brackets
- ·Plan a budget with envelope allocations
Why Xonvert Finance
Compared with Mint, bank calculators, Xonvert's finance tools trade install, license, and account for a URL. Free, private, fast, and offline-capable once loaded. The depth a desktop tool offers, with none of the friction.
Frequently asked questions
Are the Xonvert Finance tools free?+
Yes — every tool is free. No signup, no credit card, no trial limits. Pro removes the small export watermark on free tools and lifts daily quotas on the heaviest operations.
Do my files leave my device?+
No. The Finance tools run entirely in your browser. Your files are processed locally and never reach our servers.
Do they work offline?+
Yes — once a tool page is loaded, the browser caches its code and the tool keeps working without internet.
Do they work on mobile?+
Yes. Every finance tool works in modern mobile browsers on Android and iOS without an app install.
Can I use these for commercial work?+
Yes, with no licensing fees. We don't claim rights to anything you produce.