Simple Watcher!

Directory Monitor can be used for the surveillance of certain directories and/or network shares and will notify you of file changes/access, deletions, modifications, and new files in real-time. Users and processes making the changes can also be detected. Directory Monitor also provides text logs, automation via script/application execution, emailing, writing to a database, sound notifications and more.

File system/directory monitoring utilities with loggin and task processing support (can execute files or make a WCF service call). Multiple configuration options. Source code libraries can be used to create a custom file system monitor.

FSMonitor is a macOS app that monitors all changes in the file system.

Keep track of all changes in files, folders & applications in your system for analysis and diagnosis

FolderChangesView is a simple tool that monitors the folder or disk drive that you choose and lists every filename that is being modified, created, or deleted while the folder is being monitored

(From official site)When something changes you can get popup’s and sound alerts.You can also execute commands based on the changes. You can monitor local drives and server shares.If a remote location is not reachable for a while, FolderMonitor will try to reconnect to the folder. Multiple locations can be monitored. Notifications can pop up like this (when a new file was created).