Port Scanner
Scan common ports on a host to check which services are open.
- 100% free
- Private in browser
- No signup
- No watermarks
Enter
common for standard ports, or comma-separated port numbers (max 50).Enter a hostname and click Scan to check open ports.
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About Port Scanner
Port Scanner on TheToolss lets you check which ports are open on any hostname or IP address. Scan common service ports like HTTP (80), HTTPS (443), SSH (22), and more. Results show open/closed status with service names.
How to use Port Scanner
- Enter a hostname (e.g., example.com) or IP address.
- Choose ports: "common" for standard ports, or enter comma-separated port numbers.
- Click Scan and view the results.
Key features
- Scans 20+ common service ports by default
- Custom port list support (comma-separated)
- Shows service name for known ports
- Visual indicators for open/closed status
- Total scan time and count summaries
Frequently asked questions
- How accurate is this scanner?
- This scanner uses browser fetch with no-cors mode. It can detect HTTP/HTTPS services reliably. Non-HTTP services (SSH, MySQL, etc.) may appear closed even if open.
- Can I scan custom ports?
- Yes! Enter comma-separated port numbers (e.g., "80,443,3000,8080") in the ports field. Maximum 50 ports per scan.