About mortgagefox.dev
mortgagefox.dev helps you understand the true cost of buying a home with free, instant calculators. No signup. No data stored. No sales pitch.
Why We Built This
Buying a home is the largest financial decision most people will ever make, yet the tools available to home buyers are often confusing, hidden behind lead-generation forms, or designed to push you toward a specific lender.
We wanted something different: calculators that give you clear, honest numbers without asking for your email, phone number, or any personal information. No pop-ups asking you to "talk to an advisor." No data collected. Just the math you need to make a confident decision.
Whether you are figuring out how much house you can afford, comparing mortgage offers, or deciding whether to refinance, you deserve tools that work for you rather than for a lender's sales funnel.
How It Works
100% Client-Side
Every calculation runs entirely in your browser using JavaScript. Your numbers never leave your device. There is no server processing, no database, and no API calls when you use a calculator. When you close the tab, your data is gone.
Privacy by Design
We do not collect personal information. There are no user accounts, no cookies tracking your financial details, and no way for us to see the numbers you enter. Your mortgage scenarios are yours alone.
Instant Results
Results update as you type. There is no "calculate" button to click, no loading spinner, and no waiting. Change an input and see the impact immediately across every chart and breakdown.
Who This Is For
- -First-time home buyers trying to understand what they can afford, what a monthly payment actually includes, and how much cash they need at closing.
- -Current homeowners deciding whether to refinance, checking their home equity, or figuring out when PMI drops off.
- -Renters weighing their options using the rent vs. buy calculator to see whether buying makes financial sense in their market.
- -Anyone comparing loan offers who wants to see the true cost difference between multiple mortgage quotes, including points and fees.
Ready to run the numbers?
Pick a calculator and get instant answers. No forms to fill out, no email required.