The Currency Converter Web App is a simple yet powerful web-based application that allows users to convert one currency to another using real-time or pre-defined exchange rates.
It is useful for travelers, businesses, freelancers, and anyone dealing with multiple currencies.

Key Features

1. User-Friendly Interface – Clean design with dropdowns to select source and target currencies.

2. Real-Time Exchange Rates – Fetches live currency rates via an API (e.g., ExchangeRate API, Open Exchange Rates API).

3. Multiple Currency Support – Converts between 100+ global currencies.

4. Bidirectional Conversion – Automatically reverses conversion when currencies are swapped.

5. Offline Mode (Optional) – Uses last updated rates if the internet is unavailable.

6. Conversion History – Stores recent conversions for quick reference.

7. Custom Exchange Rate Option – Manually enter rates for hypothetical or offline use.

8. Responsive UI – Works seamlessly on desktops, tablets, and smartphones.

9. Lightweight & Fast – Instant calculation without page reload.

10. Multi-language Support (Optional) – Allows users to switch to their preferred language.

Technology Stack

• Frontend: HTML, CSS, Bootstrap, JavaScript (for dynamic updates without reloading).

• Backend:

  • Option 1: PHP / Java / Node.js for API calls and storing user history.

  • Option 2: Pure frontend app if only real-time conversion is needed without user accounts.

• Database: MySQL / MongoDB (for storing past conversions if login system is included).

• Additional Tools: Public currency APIs, Chart.js for currency trend graphs.