plantuml-ascii

Installation
Summary

Generate ASCII art diagrams from PlantUML text syntax for terminal and documentation use.

  • Supports six diagram types: sequence, class, activity, state, component, use case, and deployment diagrams
  • Two output formats: pure ASCII (-txt) and Unicode-enhanced ASCII (-utxt) with box-drawing characters for improved readability
  • Works with PlantUML installation or standalone JAR; outputs to .atxt or .utxt files ready for terminals, READMEs, and version control
  • Command-line options include batch processing, output directory specification, and charset configuration
SKILL.md

PlantUML ASCII Art Diagram Generator

Overview

Create text-based ASCII art diagrams using PlantUML. Perfect for documentation in terminal environments, README files, emails, or any scenario where graphical diagrams aren't suitable.

What is PlantUML ASCII Art?

PlantUML can generate diagrams as plain text (ASCII art) instead of images. This is useful for:

  • Terminal-based workflows
  • Git commits/PRs without image support
  • Documentation that needs to be version-controlled
  • Environments where graphical tools aren't available

Installation

# macOS
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Installs
9.0K
GitHub Stars
32.8K
First Seen
Jan 23, 2026