Nodes

A node performs one workflow step. This reference covers all 28 node types on the checked develop snapshot. A noodle is a connection between compatible input and output sockets.

Common controls

Double-click or right-click empty canvas space to search for a node. You can also drag a noodle onto empty space to create a compatible node.

A media node has a preview card, history or scrub controls, and a collapsible controls card. Drag a resize edge to change width. Double-click the edge to restore the default width. Videos play inline on hover, and media nodes provide download buttons.

Generation nodes keep result history and provide a Fallback tab for another model. A failed primary model can trigger an automatic retry with the fallback settings. Generation notifications report progress or errors. The Recent generations panel shows results across the canvas.

If a node has no usable input, execution skips it. For optional inputs, pauses, groups, and partial runs, see Core concepts.

Find a node

Category	Nodes
Inputs and Prompts	Image Input, Audio Input, Video Input, Prompt, Array, Prompt Constructor
Generation	Generate Image, Generate Video, Generate Audio, LLM Generate, Generate 3D, ComfyUI App
Image Processing	Annotation, Split Grid, Remove Background, Image Resize, GIF Encoder
Video Processing	Video Stitch, Ease Curve, Video Trim, Frame Grab
Routing	Router, Switch, Conditional Switch
Results	Output, Output Gallery, Image Compare, 3D Viewer

Loop noodles also control branches. See Pause and loop. To reuse ComfyUI workflows, use ComfyUI App with Blueprints or saved nodes.

Upload limits

Input nodes and the 3D Viewer accept these files and sizes.

Input	Accepted upload and limit
Image Input	PNG, JPEG, or WebP, up to 10 MB
Audio Input	Audio files, up to 50 MB
Video Input	MP4, WebM, or MOV, up to 200 MB
3D Viewer	GLB, up to 100 MB

Next steps

Start with Inputs and Prompts.

Troubleshooting Inputs and Prompts