Hex1bThe .NET Terminal Application Stack

Build, emulate, and test terminal applications with a modern, developer-friendly API.

Terminal User Interfaces

Build rich TUIs with a React-inspired declarative API. Widgets, layout, theming, focus management—everything you need for interactive terminal apps.

Build your first app

A fully-featured terminal emulator for .NET. Spawn child processes, process ANSI sequences, and inspect screen buffers programmatically.

Learn the architecture

First-class testing support with headless execution, input sequence builders, and screen assertions. Test your terminal apps like you test web apps.

Write your first test

Expose terminal sessions to AI agents via the Model Context Protocol. Let LLMs interact with your terminal applications programmatically.

Learn about MCP

Add the Hex1b package to your app:

dotnet add package Hex1b@0.1.0