➡️ IG String

IG String is the text version of this pack's typed primitives: a box, a STRING output, nothing else. You type text, it passes it through untouched. Simple as it is, it fills a real hole - several nodes in this pack take STRING inputs marked forceInput, which means they require a wire instead of showing an inline text box. IG String is how you feed them.

The most concrete example is the folder inputs on IG Explorer, IG Load Images, and IG Analyze SSIM. Those want a path over a wire; if your workflow isn't using IG Folder to build one, IG String is the manual way to supply it. It's also handy for prompt text that feeds a prompt-scheduling node, or any string you want visible and shared across multiple consumers instead of buried in a widget.

Inputs and output:

• value - STRING, free text, default empty.
• Output: STRING - the exact same text.

Worth noting the asymmetry with the other primitives: ComfyUI's own text widgets on a node are single-line by default, and IG String's value field has no multiline flag, so it's best suited to short strings - paths, names, single prompts. For multi-line text (like a Float List source or a prompt schedule), the nodes that take multiline input usually have their own inline editor anyway. There's no processing here at all - no trimming, no encoding, no joining. What you type is what travels.

Install is the pack standard:

cd ComfyUI/custom_nodes
git clone https://github.com/IDGallagher/ComfyUI-IG-Nodes
cd ComfyUI-IG-Nodes && pip install -r requirements.txt

Or ComfyUI Manager → search "IG Interpolation Nodes" → Install, then restart. No dependencies beyond the pack baseline, no model downloads. It lives in 🐓 IG Nodes/Primitives next to IG Int and IG Float; if you've used either of those, you already know this node - it's the same idea with a keyboard instead of a number.