Azure Functions allow developers to focus on writing code while Azure automatically handles infrastructure and scaling. Functions can be triggered by events like HTTP requests, queues, or database updates, making them ideal for event-driven architectures. They support multiple programming languages, including C#, Python, and JavaScript. By charging only for execution time, Azure Functions optimize costs for variable workloads. Integration with Azure Logic Apps, Event Grid, and Cosmos DB enhances automation possibilities. This serverless approach accelerates development, reduces maintenance, and ensures applications scale dynamically to meet user demands.