The best and simplest free open source web page change detection, website watcher, restock monitor and notification service. Restock Monitor, change detection.

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README.md

changedetection.io

Self-hosted change monitoring of web pages.

Know when web pages change! Stay ontop of new information!

Example use cases

Know when ...

Government department updates (changes are often only on their websites)
Local government news (changes are often only on their websites)
New software releases
Festivals with changes
Realestate listing changes

Get monitoring! super simple.

$ mkdir ./datastore
$ docker run -d --restart always -p "127.0.0.1:5000:5000" -v "$(pwd)"/datastore:/datastore dgtlmoon/changedetection.io

Now visit http://127.0.0.1:5000 , You should now be able to access the UI.

(The /datastore -v is optional, I prefer to have the files on my local disk instead of in a docker volume)

Future plans

Greater configuration of check interval times, page request headers.
General options for timeout, default headers
On change detection, callout to another API (handy for notices/issue trackers)
Explore the differences that were detected.
Use a graphic/rendered page difference instead of text (see the experimental selenium-screenshot-diff branch)

Please ⭐ star ⭐ this project and help it grow! https://github.com/dgtlmoon/changedetection.io/