Huginn is a system for building agents that perform automated tasks for you online. They can read the web, watch for events, and take actions on your behalf. Huginn's Agents create and consume events, propagating them along a directed graph.




WatchThatPage is described as 'Free service to monitor web pages and extract new information from them. Changes are sent in a daily email' and is a website monitoring tool in the os & utilities category. There are more than 25 alternatives to WatchThatPage, not only websites but also apps for a variety of platforms, including Windows, Linux, SaaS and Mozilla Firefox apps. The best WatchThatPage alternative is Huginn, which is both free and Open Source. Other great sites and apps similar to WatchThatPage are Distill Web Monitor, WebSite-Watcher, Perch Intel and Update Scanner.
Huginn is a system for building agents that perform automated tasks for you online. They can read the web, watch for events, and take actions on your behalf. Huginn's Agents create and consume events, propagating them along a directed graph.




Distill is a web monitoring tool. It can monitor RSS feeds, a webpage or a part of webpage. Alerts in the form of pop-up, audio or emails can be received.






WebSite-Watcher detects website updates and highlights all changes in the text. WebSite-Watcher monitors web pages, password protected pages, discussion forums and much more.




Automated website change detection and monitoring. Perch Intel tracks public websites and summarizes detected changes for you, so you don't have to keep checking manually.



Update Scanner is a Firefox extension to monitor web pages for updates. Useful for websites that dont provide Atom or RSS feeds.






Create automatic monitors for detecting and scanning changes on web pages, evaluate content based on conditions you define and trigger actions such as notifications, sounds, emails etc.




Create feed from elements (e.g. links) extracted from a given web page.

SiteDelta is an Add-on for old versions of Mozilla Firefox (before the introduction of WebExtensions).



Monitor webpages and receive freshly scraped data everytime the page changes to a webhook of your choice.






Very slick selection tool. No issues with "dynamic" pages like some others. Free option has similar limits to others