StringToolsStringsToList

The bridge between "one wire per text" and "one list of texts"

Most of the String Tools nodes trade in individual strings: text_0, text_1, and so on, each on its own wire. But the pack's list variants - StringToolsRandomChoiceList, StringToolsConcatList, StringToolsBalancedChoiceList - take a single list of strings on one text_list port. StringToolsStringsToList is the bridge: it collects all your separate text wires and bundles them into one STRING list.

Same dynamic-slot mechanic as the rest of the pack, by the way. You get a text_0 slot; connect a string and an empty text_1 appears, and so on. Unplug empties and they clean up. Double-clicking a slot creates a StringToolsText node, and PrimitiveNode connections are refused - the whole family shares that behavior. The one real difference is the output: instead of a single string, this node emits a list of strings (OUTPUT_IS_LIST), which is what the List variants want on their text_list port.

Why you'd reach for it

Two workflows make it earn its keep:

1. Feed the list nodes. Build a list of alternatives with several StringToolsString/StringToolsText nodes, bundle them here, and wire the list into a StringToolsRandomChoiceList or StringToolsConcatList. Now your downstream node sees one port instead of five.
2. Hand a list to any other list-hungry node. ComfyUI has plenty of nodes that accept a list of strings (batch text, some dynamic-prompt tooling, etc.). This is a clean way to produce one from discrete wires.

Under the hood it's the same collection-and-sort logic the choice nodes use: gather every connected text_N, order by numeric suffix, return them as a list. text_0 first, always.

Inputs and output

• text_0, text_1, … - the strings to bundle. Disconnected slots are skipped.
• Output: STRING as a list (is_list: true). Wire it into a text_list port, not a plain string port - a single-string consumer will not be happy with a list.

Installing it

One-pack install. ComfyUI Manager: "Install Custom Nodes", search ComfyUI String Tools (repo Taremin/comfyui-string-tools), install, restart. Or:

cd ComfyUI/custom_nodes
git clone https://github.com/Taremin/comfyui-string-tools

Restart fully. No pip deps, no model downloads - stdlib Python plus a small JS file, MIT license, release 0.0.7.

Gotchas

• Lists and single strings are not interchangeable. If the receiving node expects one string and you hand it a list, you'll get a type error or a silent mismatch. The List nodes exist precisely so you don't have to flatten by hand.
• Empty or unconnected slots are skipped, so a half-filled bundle is fine - but a fully empty one outputs an empty list, which the downstream List nodes will handle as a blank string.
• If a wire won't connect here, it's the usual PrimitiveNode refusal; swap the source for a StringToolsString/StringToolsText.