Your work stays in your browser.
ParamRig does not send a project to a ParamRig server. The application has no account and no cloud workspace today.
What the browser stores
Draft parameter values, snapshots and interface preferences use browser storage. Imported local resources may use IndexedDB. History, selection, track visibility and the keyframe clipboard are session state and go when the tab does.
Browser storage is specific to the browser profile and site origin. Clearing site data, using private browsing or changing devices can remove or isolate it.
Keep a portable copy
Use Export in a rig to copy or download the current values as JSON. That file records the parameter state. It is not a patch, and nothing applies it to your source for you.
Remove local data
Use the reset actions provided in the workbench or clear the site data for app.paramrig.com in your browser. This cannot remove files you previously downloaded.