OpenTUI is a native terminal UI library written in Zig with TypeScript bindings, delivering exceptional performance and stability for building sophisticated command-line applications. The native core exposes a C ABI, making it accessible from any programming language.

Key capabilities include:

Component-based architecture with flexible layout system for creating complex terminal interfaces
Multiple framework options: Use the imperative API directly with @opentui/core, or leverage React and SolidJS reconcilers for declarative UI development
Production-ready - Powers OpenCode and terminal.shop in real-world applications
High performance with focus on correctness and stability
Easy setup - Quick start with bun create tui command
Comprehensive documentation and examples to accelerate development

The monorepo provides three main packages: the core TypeScript bindings for native primitives, a SolidJS reconciler for reactive interfaces, and a React reconciler for familiar component patterns. Whether you're building interactive CLI tools, system monitoring dashboards, or complex terminal applications, OpenTUI provides the foundation for fast, responsive interfaces that feel native to the terminal environment.