ByteBuster Tools

Free Scan Local Network Ports From Browser

Scan local network ports from browser without ping. Free localhost port scanner detects open ports safely.

What does this tool do? Check if specific ports on your local machine are open or closed. Useful for developers debugging server configurations. Note: browsers can only test ports via connection timing.
Scans run locally — limited to localhost
View Technical Specifications (For Developers)
  • Method: Uses fetch() or WebSocket connection attempts with timeout-based detection
  • Limitation: Browser security restricts port scanning to localhost connections only

Scans common ports on localhost (127.0.0.1) only. No external network requests are made.

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