A Forex broker is a financial service provider that facilitates the buying and selling of currencies in the foreign exchange market. They act as intermediaries between traders and the market, offering platforms for executing trades and providing access to various currency pairs. Forex brokers earn money through spreads, which is the difference between the buying and selling prices of a currency. Traders use Forex brokers to leverage their investments, allowing them to control larger positions with a smaller amount of capital. Many brokers also offer educational resources, tools, and customer support to help traders make informed decisions in the fast-paced world of Forex trading.