What is Port Checker App?
Free online port scanner and network diagnostic tool. Instantly check open ports, verify firewall configurations, troubleshoot connectivity issues, and test port forwarding for TCP/UDP protocols.
Problem
Users need to manually check open ports and diagnose network issues, relying on fragmented tools or command-line utilities. manually check open ports and diagnose network issues
Solution
A free online port scanner and network diagnostic tool that allows users to instantly check open ports, verify firewall configurations, troubleshoot connectivity, and test port forwarding for TCP/UDP protocols.
Customers
IT professionals, network administrators, and developers managing servers, firewalls, or networked systems.
Unique Features
Instant TCP/UDP port scanning, real-time diagnostics, free access, and browser-based usability without installations.
User Comments
Saves time troubleshooting connectivity issues
Simplifies verifying firewall rules
Convenient for testing port forwarding
Helps identify security vulnerabilities
Useful for non-technical users
Traction
Launched on ProductHunt with 100+ upvotes, positioned as a free alternative to paid network tools.
Market Size
The global network security market is projected to reach $270 billion by 2026, driven by remote work and cloud adoption.
