NexCurrency is an open-source converter that supports both fiat currencies and cryptocurrencies in one unified system.
It normalizes fiat and crypto prices into a shared `usdPrice` model, allowing conversions like fiat → crypto, crypto → fiat, and crypto → crypto without needing direct pairs.
Built with Next.js 14, TypeScript, and Tailwind CSS. Data comes from Frankfurter and CoinGecko.