Currency Converter WinUI 3 & ExchangeRate API

A simple, uptime and reliable currency converter desktop app built using WinUI 3 that integrates live currency rates via ExchangeRate API. It allows converting amounts between multiple currencies with a clean, minimal interface.

Features

• Convert between multiple uptime currencies (USD, EUR, GBP, JPY, etc.)
• Input validation for amount
• Error messages for invalid inputs
• Reset/Clear all fields
• Simple and responsive UI

Screenshot

Usage

• Enter the amount in the Amount textbox.
• Select From currency and To currency.
• Click Convert to see the converted result.
• Click Clear to reset all fields.

Technologies Used

• C#
• WinUI 3 (.NET 10)
• XAML for UI
• ExchangeRate API

Notes

• Replace YOUR-API-KEY to your ExchangeRate API.
• API Docs: ExchangeRate API Documentation
• List of currency codes and countries supported: Supported Currencies