TCP Client / Netcat
Open a raw TCP socket to any host and port, send text and watch the reply — like netcat in your browser.
New connection
🔒 This connection is one-time and is never stored. Sign in to reach private / LAN / localhost hosts and save endpoints.
About this tool
A web-based raw TCP client (netcat / telnet style). Connect to any host and port, optionally over TLS, then grab the server's banner and send text — HTTP requests, SMTP/IMAP/POP3 commands, Redis, Gopher, finger, or your own line protocol — and read the response. Perfect for probing open ports, testing a service handshake, or checking what a daemon says when you connect. Signed in, you can reach private / LAN / localhost hosts and save endpoints that sync across devices. Signed out, the connection is one-time, public-host only, and never stored.
Frequently asked questions
Can I connect to a server on my own network?
Yes, once you're signed in. Anonymous visitors can only reach public, internet-routable hosts so the server can't be used as a jump box into a private network; signed-in users can also reach private, LAN and localhost hosts.
Is this a full interactive terminal?
It's request/response: you send text and read whatever the server returns before it goes quiet. For a full interactive shell over SSH, use the SSH Terminal tool instead.
Does it support TLS?
Yes — tick "Use TLS" to wrap the socket in TLS (so you can talk to HTTPS on 443, IMAPS on 993, SMTPS on 465, and so on).