TermUI is a cross-platform terminal dashboard and widget library built entirely in Go. It provides developers with a comprehensive toolkit for creating interactive command-line interfaces without the complexity of lower-level terminal manipulation.

Key capabilities include:

Premade widgets for common use cases like bar charts, gauges, tables, lists, and sparklines
Custom widget creation for specialized needs with full control over appearance and behavior
Flexible positioning using either relative grid layouts or absolute coordinates
Event handling for keyboard input, mouse interactions, and terminal resizing
Styling and colors to create visually appealing terminal interfaces

The library is built on top of termbox-go and draws inspiration from blessed-contrib and tui-rs. It supports Go 1.15 and above, making it compatible with modern Go projects. Installation is straightforward through Go modules, and the library includes comprehensive examples and documentation to help developers get started quickly.

TermUI has been used in production applications including Docker dashboards, system monitoring tools, and Ethereum node monitoring utilities, demonstrating its reliability and versatility for real-world terminal applications.