Node Note (节点随记) by W_Cloud is a Blender add-on for adding text and image notes directly to nodes. You reach it from the right-click menu or from the N-panel under Node > Node Notes. Text notes can be customized with font size and colors, background styling, alignment and positioning, and offset adjustments.
Image notes attach reference images to nodes, with clipboard pasting, adjustable image width, flexible positioning, and pack/unpack support for portability. You can copy from PPT or PS and paste the result as an image note. Numbered badges identify nodes through an interactive numbering mode where you click to assign a number, with customizable badge colors and navigation between numbered nodes.
Notes can be added to node group assets and will appear when the node group asset is used in other files. Many panel buttons can be right-clicked to set keyboard shortcuts. Version 1.3.0 adds multi-line textbox support in Blender 5.2 and UI improvements. The add-on works with Blender 4.2 LTS and newer and is released under the GNU General Public License v3.0 or later.