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As any app for Jira Cloud, you can install the app via the Jira admin menu.
Log into your Jira instance as an admin.
Click on “Apps > Manage apps” in the header menu.
Click on “Find new apps” on the right navigation.
Search for “Mermaid Charts & Diagrams for Jira” and select it.
Click on “Try it free” to install the app.
Usage
Mermaid Charts & Diagrams for Jira provides an app that allows you to add beautiful diagrams defined with a textual descriptions. A documentation of the textual description can be found here https://mermaid-js.github.io/mermaid. To add a diagram to an issue, select the app as shown in the screenshot below.
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The button “Add to description” saves the diagram as image as attachment and adds this image to the issue’s description. Please note: The generated image is a "snapshot" of the diagram, i.e. after updating the Mermaid code, you have to click the button again and remove the old image from the description if you want to reflect the Mermaid diagram updates also in the issue's description.
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