Diagrams, their previews and their version history are stored in the app's own Atlassian (Forge) storage for your site. When an issue is deleted, its diagrams are deleted with it. Images added to issue descriptions are normal Jira attachments.
Data leaves Atlassian only to load the draw.io editor and viewer from diagrams.net, Excalidraw's shape libraries, and, when someone uses AI, to send their request to Anthropic.
Uninstalling removes the app's storage, including every diagram and its history. Description images stay on the issues. To keep a diagram, download its source file with Export first. Read our privacy policy.