Use Client Mode to send raw HTTP/WebSocket requests. The built-in encoding tools let you send binary data or URL-encoded forms without an external tool like Postman.
wget https://verified-repo.netcatgui.org/v13/netcat-gui-v13.AppImage
sha256sum netcat-gui-v13.AppImage
chmod +x netcat-gui-v13.AppImage
./netcat-gui-v13.AppImage
Netcat GUI v13 (verified)
This is the verified v13 release – no untrusted binaries. netcat gui v13 verified
Assets:
Verification:
sha256sum -c netcat-gui-v13.sha256 Use Client Mode to send raw HTTP/WebSocket requests
Changes since v12:
Minimum Python version (if running from source): 3.10 Netcat GUI v13 (verified) This is the verified
Netcat GUI v13 is a graphical front-end for the netcat family of utilities, providing an easy interface for raw TCP/UDP connections, port listening, file transfers, and simple scripting. It maps classic netcat features (connect, listen, proxy, file send/receive) to a clickable interface while offering logging, presets, and session management.
The v13 "Verified" label ensures identical behavior on Windows 11, macOS Ventura+, and Debian-based Linux distributions. Checksums match across platforms.