JR Trove
Free · Browser-only · No signup

Loan Comparison Tool

Compare two loans side-by-side — different principal, rate, term. See monthly payment difference, total lifetime cost difference, and which loan saves more.

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Side-by-side loan comparison
Loan A
Loan B
Loan A
Monthly$1,896.20
Total paid$682,633.47
Total interest$382,633.47
Loan B
Best
Monthly$2,491.23
Total paid$448,421.45
Total interest$148,421.45
Winner: Loan B
Monthly difference
+$595.03 / mo saved
Total lifetime difference
$234,212.02 saved
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Inside the tool

What powers the Loan Comparison

Side-by-side comparison of 2 loans

Different principal / rate / term per loan

Monthly payment difference

Total lifetime savings

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Built differently

Why the Loan Comparison is different

Browser-native

The Loan Comparison runs entirely in your browser. Input is processed locally — never uploaded, never logged, never cached anywhere outside your device.

No artificial limits

No daily quotas, no character ceilings, no "upgrade for more" walls. Every feature is the complete feature — the same on the first use as the thousandth.

Production-grade quality

Built to the same engineering bar as paid SaaS tools — accurate algorithms, audited logic, responsive design and accessibility-tested interactions.

Use Contexts

Common use contexts

  • 15-year vs 30-year mortgage
  • Different lender offers
  • Refinance break-even
  • Loan term shopping
Privacy by design

Private and secure

Zero upload

All processing happens in your browser. Input is never transmitted, logged or cached.

Works offline

Once the page loads, the tool runs without an internet connection. No network calls happen during use.

No tracking

No accounts, no cookies for tool state. Only aggregate analytics count visits at the page level.

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FAQ

Loan Comparison questions

Usually yes — but 15-year mortgages have higher monthly payments. If that strains cash flow, 30-year + investing the difference may beat 15-year if you invest disciplined.