x3270 ☆

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Description:
IBM 3270 terminal emulator for the X Window System and Windows

Type: Formula | Latest Version: 4.4ga6@0 | Tracked Since: Dec 23, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: terminal emulator mainframe ibm tn3270

Install: brew install x3270

About:
x3270 is a full-featured 3270 terminal emulator that provides a graphical interface for interacting with IBM mainframe systems. It allows users to connect to TN3270 services, emulating the behavior of a physical 3270 terminal to run legacy applications. The tool includes support for SSL/TLS encryption, scriptable automation, and local file transfer capabilities.

Key Features:

Graphical TN3270/TN3270E terminal emulation
Scripting support via c3270 and s3270 for automation
SSL/TLS encryption for secure mainframe connections
Local file transfer (IND$FILE) capabilities

Use Cases:

Accessing legacy IBM mainframe applications and databases
Automating mainframe interaction tasks via scripts
System administration of z/OS environments from modern workstations

Alternatives:

tn3270 – tn3270 is a command-line only tool, while x3270 provides a full graphical interface
IBM Personal Communications – IBM PCOMM is a commercial Windows solution, while x3270 is open-source and cross-platform

Version History

Detected	Version	Rev	Change	Commit
Dec 23, 2025 2:53pm	4.4ga6	0	VERSION_BUMP	18acec29
Nov 10, 2024 1:46pm		1	VERSION_BUMP	b19bbe0c