# UniqueID
The `UniqueID` extension adds unique IDs to all nodes. The extension keeps track of your nodes, even if you split them, merge them, undo/redo changes, crop content, paste content … It just works.

Also, you can configure which node types get an unique ID, and which not, and you can customize how those IDs are generated.

:::pro Pro extension
The UniqueID extension is the first tiptap pro extension we have released on top of all the free extensions. Access to the extension and the documentation requires a tiptap pro subscription. [Become a tiptap pro now!](/pricing)
:::