MetaTrader 4 is a popular trading platform used by traders in the foreign exchange (forex) market. It allows users to analyze financial markets, execute trades, and manage their trading accounts. The platform is known for its user-friendly interface and a variety of tools that help traders make informed decisions. One of the key features of MetaTrader 4 is its support for automated trading through Expert Advisors, which are algorithms that can execute trades based on predefined criteria. Additionally, it offers customizable charts, technical indicators, and a community of users who share trading strategies and insights.