Josia文本保存

JosiaTextSave (Josia文本保存) is the "stop copy-pasting generated text out of the preview box" node. It takes any multiline string, writes it to a file, and - the part that makes it actually pleasant - handles the filenames for you with a small wildcard language. It's the natural end of a batch-prompt or LLM-in-ComfyUI workflow: the point where the workflow stops generating and starts leaving artifacts on disk.

What you set

Four required inputs, all of which double as normal widgets:

• text - the multiline content to save.
• output_path - the folder. Pick it with the built-in folder selector button (the frontend opens your OS file picker) or type it; the folder is created automatically if it doesn't exist.
• file_name - the base name, no extension, wildcards welcome.
• file_extension - txt or csv.

The wildcard rules, from the README, are paired %xxx% tokens:

• %date% → 2026-06-30
• %time% → 07:38:41
• %date:yyMMdd% → 260630
• %003% → a 3-digit sequence starting at 003 that auto-increments; %0001% is a separate 4-digit counter so the two sequences don't interfere.

If the resolved filename already exists, it gets _001, _002 suffixes instead of overwriting. CSV files get a UTF-8 BOM written in, which sounds like trivia until you open the file in Excel and find the Chinese characters rendering as mojibake without it - that's a real nicety.

The image-filename trick

There's one optional input, image, and it's the sneaky good feature: wire an image in and the node reuses that image's original filename as the base name, gray-locking the file_name box. This is what makes the "multi-image load → caption → save" batch loop work so well - each caption lands in a .txt named after its source image, matching the pairing you need for training data. Same-name collisions still get the _001 suffix, so a folder with existing captions won't clobber anything.

Output

A single file_path (STRING) output carrying the resolved path, so a downstream node can log or display where the file actually landed - useful when wildcards mean you can't predict the exact name up front.

Install

Pure Python standard library, zero extra dependencies - only the folder picker needs the frontend JS, so the node degrades gracefully if web/js is missing (type the path instead). Part of ComfyUI_JosiaNodes:

cd ComfyUI/custom_nodes
git clone https://github.com/Josia-doit/ComfyUI_JosiaNodes

or ComfyUI Manager (search ComfyUI_JosiaNodes), then restart.

Gotchas

The README mentions a past bug where button serialization scrambled widget fields (paths leaking into text, wildcards jumping around) after a restart - the current version fixes that, but if you see a %003% doing something weird after reloading a workflow, a fresh reinstall is the known cure. And one honest limit: it writes text files, not images. Pair it with a Save Image node if you need both halves of a captioning run saved together.