opencomparePrivacy and sessions
Local processing
Files, extracted text, edits and results remain in the current tab’s memory. File contents are processed in the browser, without an account or upload. Refreshing, closing the tab or browser memory cleanup loses the session. Download work before leaving; the stored language preference does not save documents.
Clipboard comparison
System clipboard commands require a user action and browser permission. Copying between the two panes does not need the system clipboard. Saving downloads a new file and does not overwrite a disk original.
Comparison limits
Browsers do not expose filesystem creation time. Vendor-private tags may be unavailable; embedded creation times are different fields.