Swap — Currency Converter 作者： Vijay

Swap converts between 30+ currencies using official European Central Bank reference rates. Type an amount, pick two currencies, and read the result instantly. Click the swap button (or press the up/down arrows) to flip direction. Your last amount and currency pair are remembered, and recent rates are cached so the popup opens instantly and still works when you're offline. No account, no API key, no analytics, no data collection. Rates come from the Frankfurter API (ECB data) and update once per business day