- Visualping: #1 Website change detection, monitoring and alerts
- urlwatch monitors webpages for you (thp.io)
- ChangeTower: Monitor Website Changes, Get Alerts, Archive Website History
- dgtlmoon/changedetection.io: changedetection.io - The best and simplest self-hosted open source website change detection monitoring and notification service. An alternative to Visualping, Watchtower etc. Designed for simplicity - the main goal is to simply monitor which websites had a text change. Open source web page change detection - Now also includes JSON API change detection and monitoring support!