文本拼接🐠meeeyo.com

If you've ever wanted to paste two or three prompt fragments together with a comma, you know ComfyUI makes you either type the whole thing or chain two nodes. TextConcatenator is the friendly join node: up to four text inputs, a separator, and - the part that makes it better than a dumb joiner - a combine_order field that lets you arrange them as 2+1+3+4 instead of always first-in-first-out.

The Chinese display name is 文本拼接 ("text splicing"). It's part of ComfyUI_StringOps, and yes, there's a naming landmine: this node is TextConcatenator, and the pack also ships TextConcatenation, which is the fancier rules-based template engine. If you just want to glue a few strings together, this is the one; if you want [1]-style templates and five outputs, that's the other one.

How it works

All inputs are optional, so it's happy with two wired strings or four typed ones:

• text1 … text4 - the pieces. Single-line fields, defaults empty.
• combine_order - how to assemble them, written as 1+2+3+4. Leave it empty and it defaults to 1+2+3+4; set 2+1 to swap; set 3 alone to emit just the third field.
• separator - what goes between pieces, default ,. Type \n for a newline.

Two behaviors matter. Empty texts are skipped - text1 = "a", text2 = "", text3 = "b" with separator , gives a,b, not a,,b. And if combine_order references something invalid (like 5), it returns an Error: ... string instead of joining - so keep orders to 1–4.

Output is a single STRING.

Where you'd use it

The obvious case: assemble a prompt from a base style, a subject, and a quality suffix without retyping. The order field earns its keep when you want the same three fragments in a different sequence for a positive vs. negative prompt - one node, two orders, or one order feeding two consumers. It's also the natural endpoint after SimpleTextReplacer cleans up your fragments, and the \n separator lets you build a multiline list for TextToList.

The traps

The pieces are single-line only - no multiline boxes here, so long prompts get cramped. And remember combine_order uses + as the separator between field numbers, so don't type 1,2,3. The empty-skip behavior is usually a blessing, but it means you can't deliberately insert a blank field to force an extra separator.

Installing it

Pack standard: ComfyUI Manager → ComfyUI_StringOps, or

cd ComfyUI/custom_nodes
git clone https://github.com/MeeeyoAI/ComfyUI_StringOps.git

Restart. Pure Python - no extra dependencies.

The honest take

It's the friendly, low-surprise joiner - the one you'll actually keep on the canvas because it's faster than typing a concatenated prompt and safer than chaining nodes. Not fancy, but "text1, text2, text3, in the order I said" is 90% of what anyone needs from a join node. Just don't confuse it with its template-engine namesake.