Currency Converter

Convert between 30+ world currencies using live European Central Bank exchange rates, with a handy rate table and offline fallback. Rates are fetched directly by your browser — no key, no cost.

100% free No uploads Runs in your browser No signup

Currency converter

Offline snapshot

Amount

Converted

86EUR

From currency

US Dollar

To currency

Euro

1 USD = 0.86 EUR

1 USD in common currencies

Rates are fetched from the free open.er-api.com exchange-rate API (no key, no signup) and cached in your browser for 6 hours. If you are offline, a bundled snapshot from the build date is used — fine for estimates, not for trading. Banks add their own margin on top of mid-market rates.

How to use the Currency Converter

1
Open the tool above — it is already running, no install or account needed.
2
Enter your input and adjust the options to match what you need.
3
Copy or download the result — everything was processed locally in your browser.

Private by design

This tool runs 100% inside your own browser using local JavaScript — your input never touches a server. That makes it instant, offline-capable in many cases, and private even for sensitive data.

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