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changedetection.io

Website change detection and notification

Automation & Workflows ★ 33k stars Easy setup Apache-2.0

changedetection.io monitors web pages for changes and sends notifications when content updates, with optional visual diffs. It targets users who need to track price drops, restocks, or content edits. It is deployed via Docker.

Official siteSource code

Key features

  • Detects web page changes
  • Visual and text diffs
  • Many notification channels
  • Browser rendering support

Pros & cons

Strengths

  • Great for price and stock tracking
  • Lots of notifiers
  • Easy to deploy

Trade-offs

  • Focused on one task
  • JS-heavy sites need browser mode

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