GoodSync is professional software for automated file synchronization and backup between local drives, mobile devices, NAS servers, and cloud services including Google Drive, Dropbox, OneDrive, Amazon S3, and SFTP. The software analyzes differences between source and destination folders, transferring only changed data blocks to save time and bandwidth. The trial version operates without restrictions for 30 days; after that it limits to 3 jobs and a maximum of 100 files per task. GoodSync provides bidirectional sync, one-way backup, and exact mirroring with automatic scheduling and real-time monitoring of file system changes.