The Plugin system allows you to modify or extend the functionality of bookmark checks by writing small scripts.


WebSite-Watcher includes a powerful integrated development environment (IDE) for writing, debugging, and testing these Plugins.


A Plugin script must contain one or more Event functions. During a bookmark check, WebSite-Watcher calls these event functions, if available, at the appropriate times. This allows you to perform custom processing. For example, you can extract a specific price from a web page, compare it with the price from the previous version, and trigger a notification only if the price is lower than USD 100 and lower than the previous price.


WebSite-Watcher supports Private Plugins, which are created and saved per bookmark, and Shared Plugins, which are stored in separate files and can be used by multiple bookmarks.