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About Network Scanner
This tool helps you discover active devices on your local network by scanning IP addresses and testing their HTTP/HTTPS connectivity.
Features:
- IP Range Detection: Automatically find your network's gateway by scanning common private IP ranges (192.168.x.x, 172.16.x.x, 10.x.x.x)
- Network Scanning: Scan a custom range of IP addresses to discover active hosts
- Detailed Error Information: See specific connection errors (timeouts, SSL issues, CORS blocks, connection refused)
- Auto-repeat Mode: Continuously monitor your network for changes
How to Use:
- Click one of the "Scan" buttons to detect your network range, or manually enter your network base
- Adjust the IP range and timeout if needed
- Click "Start Scan" to discover active devices
- View detailed information about each host including response codes and connection errors
Understanding Results:
- Green: Successful connection
- Purple: CORS policy blocked (server responded but browser blocked details)
- Orange: Connection timed out
- Red: SSL/Certificate error
- Dark Orange: Connection refused (nothing listening on port)
Note: This scanner runs entirely in your browser and uses browser security features. Some devices may not be detected due to CORS policies or firewall settings.