The main advantage of agile software development is its focus on flexibility and responsiveness to change. Agile methodologies emphasize iterative development, allowing teams to deliver small, incremental updates frequently. This approach fosters collaboration among cross-functional teams, encourages user feedback, and enables quick adjustments to project requirements based on evolving needs. By breaking projects into manageable sprints, teams can improve productivity and ensure higher quality outcomes through continuous testing and integration. Agile development ultimately leads to more user-centric products and enhances the ability to adapt to market changes and customer demands.