The Image gallery lives in the Explorer's Library section and collects every image you have uploaded. It is the companion to placing images on the canvas: the canvas is where you use them, and the gallery is where you manage them.
What it shows
Each uploaded image appears as a thumbnail with a Used in badge derived from where it is referenced, so you can tell at a glance which images are doing work and which are orphaned bytes safe to remove. You can upload a new image straight from the gallery, the same way you would from the canvas.
Deleting images
Delete an image you no longer need to reclaim the space. If an image is still used in one or more diagrams, the delete confirmation warns you first: those tiles will show as broken images afterwards, and the removal cannot be undone. Images nothing references can be cleared without that risk.
Automatic cleanup of unused images
You do not have to keep on top of this by hand. Once a day, livediagram removes uploads that are both more than 30 days old and used in no diagram, freeing the storage automatically. The 30-day window is deliberately generous: an image you uploaded recently, or one any diagram still references, is always left alone, so a picture you have not placed on the canvas yet is never swept out from under you. An image in use stays put no matter how old it is.
Signed-in feature
The gallery is tied to your account, so it is available when you are signed in and on deployments where image uploads are enabled. If uploads are turned off for a deployment, the gallery says so rather than failing silently.
Anything with no Used in badge is an upload none of your own diagrams points at, so it is usually safe to delete; the badge only scans your diagrams. The daily cleanup will eventually clear unused uploads for you, but removing one yourself reclaims the space straight away rather than waiting out the 30-day window.
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