Nodes/Image Filter/String to Int
ComfyUI Node

String to Int

Parse a Number Out of a Text Box Without the Whole Graph Exploding

By chrisgoringe·Created 2 years ago·Updated 2 months ago· 132
String to Int
    • int
    string
    default

    ComfyUI is picky about types. Feed a string into an integer input and the graph either errors or silently coerces something wrong. String to Int is the pack's answer: give it a text string and a fallback default, and it hands you a clean integer. If the string parses, you get the number; if it doesn't, you get the default instead of a crash. That "instead of a crash" is the entire selling point.

    It exists for one main workflow: typing settings into a text field at runtime and converting them downstream. The filter nodes give you three extra text boxes precisely so you can type "20" for steps or "4" for a seed offset and let this node turn it into a real integer. Combined with Split String on character and its float sibling, a single 0.4, 20 string becomes denoise and steps for a sampler.

    How it works

    Two inputs, one output, no surprises:

    • string - the text to parse. Whitespace is stripped first, so " 20 " and "20" both work.
    • default - what comes out if the parse fails. This is your safety net; pick something the graph can survive, because a bad string lands here, not on the floor.

    The output int is the parsed value or the default. "20"20. "banana" → whatever you put in default. Empty string? Also the default.

    Installing it

    It's part of chrisgoringe/cg-image-filter - same install as the rest of the pack. ComfyUI Manager, search "cg-image-filter" or "Image Filter":

    cd ComfyUI/custom_nodes
    git clone https://github.com/chrisgoringe/cg-image-filter
    

    Restart ComfyUI. No dependencies or models.

    Gotchas

    There's one real trap, and the README leads with it. This node was renamed (the class is cg_String to Int) because "String to Int" collided with identically-named nodes in other popular packs. If you load an old workflow after updating and get an error that the node doesn't exist, that's the cause - delete it and add it back fresh. Same advice applies across the pack: when a filter node acts up after an update, remove it and re-add it before hunting for a bug. And remember default is your friend: it's the difference between "tweak a string and keep generating" and "go hunting through a log for a parse error."

    Categoryimage_filter/helpers

    Inputs (2)

    NameTypeDefaultDescription
    stringSTRING
    defaultINT

    Outputs (1)

    NameTypeDescription
    intINT