Is the currency converter free?

Yes, completely free. No signup, no API key required.

Does my data leave my device?

No. The exchange rates are bundled into the page itself and all conversion happens in your browser with zero network requests.

Does it work on mobile?

Yes. The currency converter is mobile-first and works on iPhone Safari and Android Chrome, even without an internet connection after the initial page load.

Currency Converter — Convert 30+ Currencies Offline

Currency Converter

Convert between 30+ currencies using reference rates. Works offline — no API call needed.

100% client-side · no upload

Amount

From

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Reference rate

Rates are reference values for estimation. For transactions, check your bank or broker for live rates.

How to use the currency converter

Enter the amount you want to convert.
Select the source currency from the From dropdown.
Select the target currency from the To dropdown.

Common use cases

Travel planning: Estimate how much foreign currency you need before a trip.
Online shopping: Quickly check the price in your home currency.
Freelance invoicing: Convert project fees between client and your local currency.

Related tools: Tip Calculator · VAT Calculator · All Finance Tools

よくある質問

Is the currency converter free?: Yes, completely free. No signup, no API key required.
Does my data leave my device?: No. The exchange rates are bundled into the page itself and all conversion happens in your browser with zero network requests.
Does it work on mobile?: Yes. The currency converter is mobile-first and works on iPhone Safari and Android Chrome, even without an internet connection after the initial page load.