IMPORTANT: as of Nov 28, 2023 ComfyUI has the undo/redo functionality, thus making this extension obsolete.

After updating your local ComfyUI you will have to remove or disable the extension as it will conflict with the now existing functionality.

To completely remove the extension you may need to delete the ZZZ-Bmad-DirtyUndoRedo inside the web/extensions directory. (the latest version of this extension will delete this folder after starting ComfyUI)

Alternatively, if you wish to keep using the extension you will have to remove the undoRedo.js from the web\extensions\core directory.

ComfyUI extension that adds undo (and redo) functionality.

Undo: Ctrl/⌘ + Z

Redo: Ctrl/⌘ + Y ; or Ctrl/⌘ + Shift + Z

Keeping the keys pressed will repeat the undo/redo operation at an ever-increased pace.

• Navigate to /ComfyUI/custom_nodes/ folder;
• git clone https://github.com/bmad4ever/ComfyUI-Bmad-DirtyUndoRedo.

I was mainly concerned with getting a somewhat working solution quickly and not so much with implementing it "right". For example, the undo/redo data contains snapshots of the entire serialized workflow (this is overkill), and I'm not considering changing it.