🛠️ CR Repeater

About as simple as list-building nodes get: CR Repeater takes one value and outputs it N times as a list. No transformation, no randomization - just the same input, repeated exactly as many times as you ask.

What it's for

ComfyUI's native list-execution model runs a downstream node once per item in a connected list. Sometimes what you want isn't a list of different values but the same value run N times - batch-testing a fixed prompt against N different seeds where the seed comes from elsewhere in the graph, running the same image through N iterations of a stochastic process, or just padding a batch to a specific size with a repeated placeholder. CR Repeater is the node that turns "I have one value" into "I have a list of that value, N times long" so the rest of your list-driven pipeline has something to iterate over.

How it works

It accepts any single value on input_data - the type is a wildcard, so it works with images, strings, numbers, conditioning, whatever you feed it - and a repeats count, then outputs a list containing that same value copied repeats times.

Inputs and outputs that matter

• input_data - the value to repeat. Since the type is a wildcard, this connects to essentially any output type in ComfyUI.
• repeats (default 1, up to 99,999) - how many copies to produce. At the default of 1, this node is a no-op that just wraps your single value into a one-item list.

Output is list - the repeated values as a list, matching whatever type you fed in - plus the standard show_help link to this node's wiki page.

How to install it

Search "Comfyroll Studio" in ComfyUI Manager, or install manually:

cd ComfyUI/custom_nodes
git clone https://github.com/Suzie1/ComfyUI_Comfyroll_CustomNodes.git

Restart ComfyUI. No models or extra dependencies for this node.

Common issues & troubleshooting

Downstream node runs once instead of N times. Check that whatever's connected after this node is actually set up to consume list inputs and trigger per-item execution - some nodes only ever grab the first item of a list rather than iterating, which will look identical to this node doing nothing.

Set repeats to a large number and ComfyUI seems to hang or use a lot of memory. This node happily accepts up to 99,999 repeats, but everything downstream still has to actually execute that many times - a value that large feeding into an image-generation pipeline, for instance, will genuinely try to run that many generations. Start small and scale up deliberately rather than typing a big number to "be safe."

Expected different values per item, got the same value every time. That's the entire point of this node - it repeats, it doesn't vary. If you actually want N different values (a range of seeds, a set of varied prompts), you want a different node: CR Prompt List for varied text, or ComfyUI's own range/increment utilities for varied numbers.

Pack fails to load at all. That's an install issue rather than something about this node - delete the ComfyUI_Comfyroll_CustomNodes folder and re-clone clean rather than debugging a partial install.