Top 10 Best Com Port Redirector Software of 2026

Eltima Serial Port Redirector focuses specifically on redirecting one or more serial ports to other applications without changing the software that opens the port. It can act as a local COM port proxy for apps that expect a real COM interface while redirecting traffic to the configured target. The tool supports mapping and routing of serial data streams so monitoring and virtual rehosting workflows remain possible. It is best suited to serial test setups, where legacy applications must communicate through a different physical connection or host.

Serial Port Redirector built on com0com stands out by creating virtual COM ports that map back to paired endpoints on the same Windows host. It supports redirecting serial traffic by exposing the usual COM interface to legacy software that expects hardware UART ports. The core capability is a reliable COM-to-COM bridge using driver-level virtual port pairing, which works for testing, loopback, and protocol simulation. It does not replace hardware serial adaptors for true cross-machine routing, so its strongest results appear on single-system virtualization scenarios.

HW Group Port redirection utilities focus on mapping physical serial devices to virtual COM ports for legacy software compatibility. The utilities provide selectable port redirection so applications can connect to a stable COM endpoint while hardware devices change. Support for scripting and configuration helps automate repeatable redirection setups across systems. The toolset is built for serial workflows rather than network bridging or broad device virtualization.

Serial over IP SIP gateways from Comtrol focus on carrying serial data over an IP network using RS-232 or RS-422/RS-485 serial interfaces. They support Com Port Redirector use cases where applications access remote serial ports as if they were local, reducing dependency on direct cable runs. Hardware-based IP-to-serial conversion brings deterministic link handling and simpler network deployments for multi-site equipment. Central gateway deployment works well for serial devices that need consistent transport across LAN or WAN segments.

Moxa serial device servers stand out for bridging legacy serial equipment into modern networks with hardware-first reliability. The core capability for a Com Port Redirector use case is mapping serial ports from Moxa devices into virtual COM ports on a Windows host for applications that expect local serial access. Support for standard serial settings, network monitoring, and robust device management helps deployments stay stable during long uptime runs. The solution fits best when the redirector needs direct serial tunneling over TCP and predictable port behavior instead of complex software emulation.

Lantronix serial console servers focus on making remote serial access practical by bridging unmanaged serial ports to network-connected console sessions. The lineup supports standards-based remote management for serial console traffic, which fits common com port redirector workflows where applications expect a local COM endpoint. Hardware-based console server designs reduce reliance on a single host as a middle layer, which benefits environments that need resilient console access. Integration typically centers on connecting serial devices, then exposing console access over the network for operator workflows and automated tooling.

DIGI serial console servers stand out by providing reliable out-of-band serial access to remote devices across managed networks. Core capabilities include serial port concentration, SSH and TLS-based console access, and role-based user session control for operators who need stable com port redirection workflows. Management features support monitoring, configuration templates, and alerting so serial sessions can be supervised rather than handled ad hoc.

Eltima Serial Port Splitter is designed specifically to duplicate and route traffic from one serial (COM) port to multiple targets. It supports flexible split modes for common redirector use cases such as monitoring and simultaneously feeding multiple applications. The tool focuses on serial data forwarding control rather than broader device management, which makes it a direct fit for COM Port Redirector Software workflows.

Eltima Serial Port Monitor centers on capturing serial traffic and logging it while it is passing through serial communication sessions. It supports monitoring and analysis tasks that are commonly needed for troubleshooting serial device behavior and redirecting communications across environments. The tool also focuses on configurable rules for how data is handled and displayed, which suits workflows that require repeatable capture and diagnostic context. It is best positioned as a practical Com Port Redirector support utility paired with strong logging and traffic inspection rather than a pure high-availability proxy.

pySerial provides Python-level access to serial ports, which makes it distinct for building custom com port redirection workflows in code. With serial tunneling add-ons, it can forward serial bytes over TCP sockets or similar transports to bridge local COM ports to remote endpoints. This approach supports flexible routing, protocol-aware framing, and integration into existing test harnesses and automation scripts.