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 now! super simple, one command!

docker run -d --restart always -p "127.0.0.1:5000:5000" -v datastore-volume:/datastore dgtlmoon/changedetection.io

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

Updating to latest version

Highly recommended :)

docker pull dgtlmoon/changedetection.io
docker restart $(docker ps|grep changedetection|awk '{print $1}')

Screenshots

Application running.

Examining differences in content.

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~~
Add more options to explore versions of differences
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/