Monitor pages,
get notified
instantly.
Change detected
example.com — 3 min ago
3
Monitoring
12
Changes this week
Simple yet powerful
Everything you need to stay on top of page changes. No complex setup required.
Flexible detection
Choose between full-page change detection or keyword monitoring with AND/OR conditions. Catch only the changes that matter to you.
Desktop notifications
Get notified the moment a change is detected. One click opens the page directly. Never miss an important update.
Privacy by design
All monitoring happens in your browser. Your URLs and browsing data are never sent to any external server.
Custom intervals
Set check intervals from 5 minutes to 24 hours. Fine-tune monitoring frequency for each page individually.
Detailed diff view
See exactly what changed with side-by-side text comparison. Character-level highlighting makes differences easy to spot.
Smart error handling
Automatically detects CAPTCHAs, login walls, and access restrictions. Stops checking to avoid unnecessary load on target sites.
Runs in your browser.
Your data stays yours.
PageSignal doesn't crawl pages from a server. Every check, every comparison happens right inside your browser.
Your monitored URLs and browsing data are never sent anywhere. When Chrome is closed, nothing runs — no background connections, no surprises.
Get started in 3 steps
Setup takes just a few minutes
Install
Add the extension from the Chrome Web Store
Add a URL
Enter the page you want to monitor and set your check interval
Get notified
Receive a desktop notification whenever a change is detected
Start monitoring today
Monitor up to 10 pages with 5-minute check intervals. Get notified the moment something changes.