Where diagrams are stored

Local by default

A diagram you create in the editor starts in local-browser mode. It is written to your browser’s storage on the device where you created it, which means:

• The diagram’s contents are not sent to nifdi.
• It is not visible to anyone else.
• It is not available to you on your other devices.
• It lasts only as long as your browser’s storage. Clearing site data removes it.

That last point cuts both ways: local storage is private, but it is not a backup. Download a copy, or move the diagram to the cloud, for anything you would mind losing.

Moving a diagram to the cloud

Cloud diagrams are part of nifdi Pro. With Pro, the storage panel offers Move to cloud and Copy to cloud for a local-browser diagram. Move retires the original; copy leaves it where it is.

Once a diagram is in the cloud:

• Its contents are stored on our servers.
• You can open it from your other devices.
• Only you can open it.
• Your agent can reach it over the hosted MCP server, once you connect the agent and sign in.

A cloud diagram’s storage panel offers Move to browser and Copy to browser to bring it back.

Signing in to nifdi does not put your diagrams on our servers. A diagram reaches nifdi’s infrastructure only when you move it there.

Files on disk

Opening a .nifdi.svg from your disk puts the diagram in local-file mode, and edits are saved back to that same file as you work. This needs the File System Access API, which today means Chrome and other Chromium browsers.

Workspace files

When an agent drives nifdi through the MCP server, diagrams are files in the workspace the server was started in, and the mode is local-workspace. The storage panel shows the path of the file backing the open diagram. These diagrams never leave your machine; the server runs locally and serves the editor from there.

Storage modes

The current mode (as described above) is shown as a button in the editor’s toolbar. Click on the button to open the storage panel.

Mode	Where the diagram lives
local-browser	Your browser’s storage, on this device
local-file	A .nifdi.svg file on your disk
nifdi-cloud	Nifdi’s servers
local-workspace	A file in your project directory, served by the nifdi MCP server

More detail

Storage in detail covers the browser’s local cache of every diagram, what happens to cloud diagrams when Pro ends, and what moving a diagram back out of the cloud deletes.