Simple PlantUML for Confluence

works with Confluence Cloud

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Key highlights of the appCreate and edit PlantUML diagrams in Confluence with inline or attachment-based source storage

Create professional PlantUML diagrams directly in Confluence Cloud without external tools.

Helps teams to be more productive when discussing complicated architecture decisions and sharing ideas.

Key Features:

Simple and intuitive user interface
Full support of all PlantUML types of diagrams (sequence, flowchart, usecase, object diagrams etc, as well as mindmap, gantt chart, ditaa diagram etc.). Check PlantUML website or PlantUML Language Reference Guide (PDF)
Flexible source storage: store source code inline or as page attachments for better organization and reuse
Store diagram as page attachments:

Feel free to post the new feature request. Don’t hesitate to leave a review if you like it.

Try it now for free and enjoy the functionality.

Descriptor
Get the descriptor file downloaded to your system
App documentation
Comprehensive set of documentation from the partner on how this app works

Atlassian's privacy policy is not applicable to the use of this app. Please refer to the privacy policy provided by this app's partner.

This app is not part of the Marketplace Bug Bounty program.

Simple PlantUML for Confluence integrates with your Atlassian app

Version 1.1.17-AC•for Confluence Cloud

Release date: Dec 13th 2025
Summary: Attachment source storage, enhanced validation, and improved user experience
Details: What's New:
Attachment-Based Source Storage: Choose how to store your PlantUML diagram source code with three flexible options:
Store source in macro (default): Keep source code inline within the macro
Use existing attachment: Select an existing PlantUML file from page attachments
Save as new attachment: Create dedicated attachment files for better organization and reuse
Enhanced Validation: Real-time validation for diagram image names and source attachment names with automatic duplicate detection to prevent naming conflicts
Improved Error Handling: More informative error messages for PlantUML syntax errors and validation issues with clear visual feedback
Better User Experience: Streamlined interface for selecting and managing diagram sources with intuitive workflow
All existing diagrams continue to work without any changes required. Full backward compatibility maintained.
Payment model: Paid via Atlassian
License type: Commercial