ComfyUI-AICoser-SplitLines

Here's a workflow that's older than ComfyUI: you keep your prompts in a notes file, one per line, and you'd love to just paste the whole block in and generate all of them. AICoser_SplitLines is the node that makes that paste work. It takes one multiline string, splits it into a list of lines, and hands you a STRING list ready for a batch loop.

The use case is batch generation from a text file. Paste a hundred prompt lines, split them, feed the list into this pack's queue or batch nodes (or any list-iterating node), and let the machine grind through all of them. It's the text side of the same "load a pile of things and process them all" pattern the pack's BatchLoadImages handles for images.

How it works

It's a string splitter with opinions, and the opinions are the useful part. Before splitting, it normalizes all the ways a "newline" can hide:

• Real line breaks - \r\n, bare \r, and the unicode separators - all become \n.
• HTML <br> and <br/> tags become newlines if split_html_br is on (handy if you're pasting from a rich text source).
• Literal escaped \n (backslash-n, as you'd see in JSON or some API output) becomes a real newline - but only if the text doesn't already contain real newlines. That guard keeps you from double-splitting text that mixes both.

Then it splits, and two toggles clean up the result: trim strips whitespace off each line, and ignore_empty drops blank lines so you don't get phantom empty prompts from trailing newlines.

The inputs that matter

• text - the multiline string to split (wire in from a TextBox or paste source).
• ignore_empty (default on) - drop blank lines.
• trim (default on) - strip whitespace from each line.
• split_escaped_newline (default on) - honor literal \n as a break when there are no real newlines.
• split_html_br (default on) - treat <br> as a line break.

Output: texts (STRING, as a list) - one item per line, in order. Note the edge case: if you feed it a string that's already a list, it passes the list through untouched, so it composes with other list nodes.

Installing it

Part of ComfyUI-AICoser-Tools, same one-time install:

cd ComfyUI/custom_nodes
git clone https://github.com/aicoser-sister/ComfyUI-AICoser-Tools

Restart ComfyUI, or install via ComfyUI Manager by searching "ComfyUI-AICoser-Tools". No dependencies beyond ComfyUI.

Common issues

• "My literal \n lines didn't split" - the escaped-newline conversion only runs when the text has no real newlines. If your text mixes real breaks with literal \n sequences, the literal ones stay literal. That's a deliberate guard, not a bug.
• Output looks shorter than my text - ignore_empty and trim are on by default, so blank lines and stray spaces vanish. Turn ignore_empty off if you genuinely need to preserve the blank positions.
• A list won't plug into a single-string node - same story as TextList: the output is a list type. It feeds batch/loop nodes, or you index into it, not straight into a CLIP Text Encode.

It's a five-toggle utility, but it's the difference between pasting a hundred prompts manually and pasting them once. For anyone who keeps prompt libraries as text files, this is the node that pays for the pack's install all by itself.