Mermaid for Jira Cloud

by Yamuno Software

works with Jira Cloud

Free app

OVERALL RATINGS
INSTALLS
SUPPORT: Partner Supported
TRUST SIGNALS

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Overview

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Privacy & Security

Support

Installation

Key highlights of the appMermaid diagrams on every Jira issue. Paste Mermaid or use the live editor, in your own colours

Diagrams on every Jira issue

A Mermaid diagrams section sits on the right of every issue, collapsed until you need it, with a count of what's inside. Nothing to set up per project.

Paste Mermaid, see the diagram

Any code block set to mermaid, in the description or a comment, is drawn on the issue. Read-only, with a link back to the comment it came from.

A full editor right on the issue

Write Mermaid with a live preview, start from one of 12 templates, and pick a theme, look and direction. Only people who can edit the issue can save.

Supporting media

More details

Mermaid Diagrams for Jira draws Mermaid diagrams right on your Jira issues, with no setup per project.

On every issue

A Mermaid diagrams section on the right of every issue, collapsed until you need it, with a count
Any mermaid code block in the description or a comment is drawn automatically
Show several diagrams as tabs, a list or a grid, and open any one full size

Write and edit

A split editor with a live preview, 12 templates and snippets
Theme, hand-drawn look and direction from the toolbar
Only people who can edit the issue can save

Your brand

Jira admins create colour themes for the whole site, each with a dark mode version

Runs on Atlassian: diagrams are stored on the issue itself, nothing leaves Atlassian.

Get started · Documentation

Resources

App documentation
Comprehensive set of documentation from the partner on how this app works

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.

Integration permissions

Mermaid for Jira Cloud integrates with your Atlassian app

Version information

Version 2.4.0•for Jira Cloud

Release date: Oct 23rd 2026
Summary: First release: Mermaid diagrams on every Jira issue, with a live editor
Details: On every issue: a Mermaid diagrams section in the right-hand column, with a count of the issue's diagrams.
Code blocks: any mermaid code block in the description or a comment is drawn automatically.
Editor: split code and live preview, 12 templates, snippets, theme, hand-drawn look and direction. Open it from the issue's ••• menu or the + in the section.
Views: tabs, a list or a grid, and any diagram full size; each reader's zoom is remembered.
Colour themes: site-wide themes with a dark mode version, in Jira settings > Apps.
Get started: a welcome page with a live example and a picture of each first step.
Payment model: Free
License type: Commercial - no charge