QuickTCP

QuickTCP gives you production-grade TCP networking in minutes. Add the client or server component to any actor, wire up a few Blueprint events, and you are streaming bytes, strings or length-prefixed messages between Unreal and any TCP endpoint.

Getting started takes three nodes: add a QuickTCP Client (or Server) component, call Connect (or Listen), and bind the OnReceived events. From there the component manages the socket lifecycle for you - reconnecting with exponential backoff when the link drops, sending keep-alives on a timer, framing outgoing messages with a length prefix so partial reads never corrupt your protocol, and raising game-thread events for every connection state change. Counters for bytes and messages let you build live diagnostics widgets without touching C++.

Use it to talk to authoritative game backends, bridge Unreal to companion apps and hardware on the local network, drive install-base tools like render farms and kiosk controllers, or prototype any custom TCP protocol without leaving Blueprints. Because client and server both live in the same plugin, you can also wire two Unreal instances together directly for LAN tools and couch-play utilities.

QuickTCP is part of the Alpha XP networking collection for Unreal Engine 4.27-5.0+. Every feature is exposed to both Blueprints and C++, ships with styled HTML documentation, and follows one consistent API style across the whole collection. The plugin is compiled and verified against a clean UE 4.27 project, comes with a utility node pack (hashing, GUIDs, timestamps, tokens, validation), and is maintained under the Alpha XP brand with documentation hosted online.

Key Features:

- Client and server components, fully Blueprint-exposed

- Auto-reconnect with exponential backoff, connection timeout and dropped-connection detection

- Keep-alive, TCP_NODELAY and length-prefixed message framing with size caps

- Targeted multicast to selected clients, live byte/message counters

- String, hex and Base64 helper nodes

- Utility node pack: CRC32/MD5/SHA-1 hashing, GUIDs, timestamps, random tokens and hostname validation

Full documentation: https://demo.alphaxp.net/FabStore/Network/QuickTCP/

Support: https://alphaxp.net/