Sequin is a utility that helps debug CLIs and TUIs by describing escape sequences and exploring TUI functionality. It can inspect golden files, like those used by teatest, to analyze Bubble Tea output. Sequin offers various installation methods and shell completions for ease of use. It can explain escape sequences with examples like printf commands and analyze program output with commands like ls and git. Sequin also supports syntax highlighting for raw sequences to distinguish them from regular text. Built on the ansi package, Sequin is open to contributions and feedback for further development.
https://github.com/charmbracelet/sequin