Port Scanner
Scan open TCP/UDP ports
Scan network ports to check which services are running. Identify open ports and running services on any host or IP address.
Common Ports Reference:
Port Scanner — Scan Open Ports on Any Host Free Online
Scan open ports on any IP address or hostname. Checks common ports (80, 443, 22, 21, 3306) and custom port ranges.
Why Use This Tool?
Get results in seconds — no waiting, no processing queue, no delays.
All processing happens in your browser. Files never leave your device.
Open the tool and use it immediately. No account or registration needed.
Not a trial, not freemium. 100% free forever with no hidden charges.
Works on desktop, tablet and mobile — iPhone, Android, any browser.
Pure browser-based tool. No software download or installation required.
Features
- ✓ Scan multiple ports
- ✓ Service identification
- ✓ Common ports reference
- ✓ Custom port selection
- ✓ Security insights
- ✓ Port purpose descriptions
Frequently Asked Questions
Your Privacy, Our Priority
We don't store any of your data or files. All files are instantly deleted after your use completes.