JR Trove
Free · Browser-only · No signup

Currency Converter

Live currency conversion between 170+ world currencies. Rates sourced from open.er-api.com (central-bank derived, updated daily). Pick any base, see all popular currency rates at once.

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Rates source: open.er-api.com — free public exchange-rate feed, updated daily from central-bank data. For real-time trading rates (with bid/ask spread), use a paid forex provider. Tool caches 1 hour to reduce upstream calls.
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Inside the tool

What powers the Currency Converter

170+ world currencies

Live rates from open.er-api.com (central-bank derived)

Updated daily

1-hour cache to reduce upstream calls

See popular currencies at-a-glance grid

Swap from/to with one click

Manual refresh button

Built differently

Why the Currency Converter is different

Browser-native

The Currency Converter 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

  • Travel — converting trip budget to local currency
  • E-commerce pricing — setting prices in multiple currencies
  • Freelance — quoting clients in their currency
  • Investment — tracking international holdings
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

Currency Converter questions

open.er-api.com aggregates central-bank rates, updated daily. Suitable for general conversions, budgeting, and price displays. For real-time trading rates (with bid/ask spread), use a paid forex broker feed.