Self-hosted website and content change detection tool with filters, screenshots, and multi-channel notifications for price drops, restocks, and site monitoring.

33.4k stars2k forksApache-2.0last commit Actively maintained

SaaS website change monitoring service that detects content and visual changes to web pages, captures snapshots and side-by-side diffs, and sends alerts and reports for compliance, competitive intelligence, QA, and archival purposes.
Self-hosted website and content change detection tool with filters, screenshots, and multi-channel notifications for price drops, restocks, and site monitoring.

33.4k stars2k forksApache-2.0last commit Actively maintained
Monitors GitHub and website releases and notifies via WebHooks and messaging channels.

731 stars27 forksApache-2.0last commit Actively maintained
A self-hosted service that monitors changes on web pages and notifies you via email or messaging apps using YAML configurations.

714 stars60 forksMITlast commit Actively maintained
Monitor domain names via RDAP, track full lifecycle history, receive alerts, and automatically attempt domain registration when domains enter deletion or become available.

393 stars31 forksAGPL-3.0last commit Actively maintained
Node.js utility that monitors TestFlight invite URLs and sends Pushover notifications when beta slots open; configurable via .env with an optional web endpoint for management.
18 stars0 forksMITlast commit Likely dormant
Webcap is a self-hosted tool to capture, screenshot, and archive web pages for later reference, sharing, and documentation.

Activity unknown
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 4 of 6 shipped a commit in the last six months. Licences in this list: Apache-2.0, MIT, AGPL-3.0. In exchange you take on hosting, backups and updates yourself.
Browse everything in Monitoring & Observability.