Image-Hold_Last

ComfyUI Image Hold Last

A minimal ComfyUI custom node that acts as an image passthrough — and holds the last received image when the upstream connection is bypassed or missing.

What it does

| Situation | Output | |---|---| | Image is connected and flowing | Passes the image through and caches it | | Upstream node is bypassed / disconnected | Returns the last cached image | | No image has ever been received | Returns a 1×1 black pixel (safe fallback) |

This is useful in workflows where you conditionally bypass a generation node (e.g. a sampler or loader) and want downstream nodes to keep working with the previous result instead of receiving nothing.

Installation

Via ComfyUI Manager

Search for Image Hold Last in the Custom Nodes Manager and install.

Manual

cd ComfyUI/custom_nodes
git clone https://github.com/SeBL4RD/comfyui-image-hold-last

No extra dependencies required.

Usage

1. Add the Image Hold Last node (found under utils).
2. Connect any IMAGE output to its optional image input.
3. Connect its output to your downstream nodes.

When the upstream node is muted or bypassed, the node silently replays the last image it received.

Node reference

| | | |---|---| | Input | image (IMAGE, optional) | | Output | IMAGE | | Category | utils | | Display name | Image Hold Last |

Known limitation

If you use multiple instances of this node in the same workflow, they share a single internal cache. The last node to receive an image will overwrite the cache for all instances. Use one instance per pipeline branch to avoid conflicts.

License

See LICENSE.