Is this port checker online free?

Yes. VSPIC IP offers this port checker online at no cost with no account required. Results load in real time.

Do you store my searches?

We do not permanently store your queries on our servers. Some tools run entirely in your browser; others fetch public data for the request only.

Yes. Open the page in any modern phone or tablet browser. Results work on Wi‑Fi and mobile data.

Yes. VSPIC IP offers this port checker at no cost with no account required. Results load in real time.

We do not permanently store your queries on our servers. Some tools run entirely in your browser; others fetch public data for the request only.

Yes. Open the page in any modern phone or tablet browser. Results work on Wi‑Fi and mobile data.

Yes. No signup. Check up to 20 ports per request.

Common causes: wrong internal IP, ISP blocking inbound ports, firewall on the device, or testing from inside the same LAN instead of externally.

This tool tests TCP. Most web and game troubleshooting starts with TCP.

Open means TCP handshake succeeded. Closed or filtered means no response or rejection — firewalls often filter silently.

Network Tools

Check open ports on any IP address or hostname — TCP port checker with common presets