SequenceDiagram.org for Confluence

by NoSpareTime AB

works with Confluence Cloud

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SUPPORT: Partner Supported
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Overview

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Privacy & Security

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Installation

Key highlights of the appCreate UML sequence diagrams using textual notation or draw quickly via Drag and Drop

Text notation in combination with Drag and Drop

Simple and robustly featured https://sequencediagram.org/instructions.html. Runs on Atlassian and available online for over 10 years and serving several thousands of daily unique users.

Instantly rendered

All parsing, processing, and drawing is done client side, all data is stored in your confluence page. Use page history to see changes or restore previous versions.

Update the diagram at the same pace as you think

Improved efficiency when creating and working with sequence diagrams by combining text notation and drawing by clicking and dragging in the same model. Edit, add, move, delete, and change where it is easiest to do so.

More details

Steps to create a new diagram:

Edit a page
Type /seq... and select SequenceDiagram.org for Confluence
An editor will be displayed for you to create the diagram
Press the blue [Save] button in the top right corner (or [Cancel] button to abort)
Select diagram scaling using the built in confluence functionality
Publish your page
Done!

All parsing, processing, and drawing is done client side in your browser. The diagram source data is stored in your confluence page, not on any external servers, which means that you can compare versions of your diagrams using confluence built in page history.

Resources

App documentation
Comprehensive set of documentation from the partner on how this app works
License Agreement
This app is licensed under the Standard Agreement and NoSpareTime AB's .

Privacy and Security

Privacy policy

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.

Partner privacy policy

Security program

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

Version information

Version 2.4.0•for Confluence Cloud

Release date: Aug 26th 2025
Summary: Runs on Atlassian, aligned styling for all elements, and bug fixes
Details: Runs on Atlassian!
Note: Fullscreen editor is not yet supported on Atlassian Forge but will be added as soon as available, likely mid 2026 according to Atlassian time table
support for named style that can be applied on any element(s), see instructions for more info
support for coloring only the border of fragments without also coloring the inside
unified styling syntax across all elements and increased compatibility with other tooling (legacy syntax remains supported)
bugfix: d attribute is not ended with Z for svg causing small unpainted corners
bugfix: rparticipant breaks export to svg
bugfix: message lines are not leveled in the middle of notes when using parallel
bugfix: styling is lost when using double click to edit for fragments
bugfix: syntax highlighting is wrong when there is a space next to the message arrow
Payment model: Paid via Atlassian
License type: Commercial