FileZilla is a popular, open-source FTP (File Transfer Protocol) client software known for its ease of use and robust features. It enables users to transfer files between their local computer and a remote server, making it ideal for website management, uploading/downloading files, and sharing data securely. With support for FTP, FTPS, and SFTP protocols, FileZilla ensures secure and reliable file transfers. Its intuitive interface allows for easy navigation and management of files and folders. Additionally, FileZilla offers features such as drag-and-drop functionality, file queuing, site manager, and transfer speed limits, making it a versatile tool for both beginners and experienced users alike.