Scene Prompt Viewer

Every ComfyUI user hits the same wall eventually: you've got a folder of 40 images that all need the same pass - upscale, face fix, style transfer - and the standard answer is a batch of Load Image nodes, or one big batch where you can't tell which image is which. Scene Prompt Viewer is the node that says "no." Point it at a folder and it renders a card per image, each with its own editable prompt field, right there on the node. You can see everything at once, tweak prompts per picture, and still get the whole set out as one IMAGE batch for your downstream nodes.

The author built it for exactly that workflow - they said so in their r/comfyui Show-and-Tell post. Switching back and forth between images and their prompts, then manually renaming and sorting files during batch processing, was eating their time. The whole pack is that pain, packaged. It's niche, but if you've ever hand-numbered 60 output files, you get it immediately.

How it works

The clever part is the UI. The node ships a JS extension that scans your folder via a local route (/scene_prompt_viewer/scan) on ComfyUI's own server - no external API, no key, no model downloads. Click ↻ Rescan and you get thumbnail cards; type a prompt into any card. Those prompts are serialized into a hidden _internal_state widget as JSON, so they survive saving the workflow and reopening it.

When you hit Queue, the node re-scans the folder fresh (in case you dropped new files in), loads every image, and letterboxes them all to the dimensions of the first image - mismatched aspect ratios get black bars, which is worth knowing if your folder is a mix of portraits and landscapes. Prompts are matched to images by lowercase filename, so renaming a file detaches its prompt.

Inputs and outputs that matter

Only three settings do anything on a normal run:

• image_folder - the path to scan. Top-level files only; no subfolders.
• sort_by - filename_asc or filename_desc. Changes card order and, importantly, the order of the batch.
• slot_count - how many individual image/prompt socket pairs you want (0–8). Images beyond that are batch-only.

You'll also see prompt_in_1 through prompt_in_8 (optional string inputs) and a hidden _internal_state widget - leave that alone.

Outputs: IMAGE (the full batch), prompts (all prompts newline-joined), filenames (comma-joined file stems, no extension - this is what feeds the pack's saver), plus image_N / prompt_N pairs up to 8. The external prompt_in_N override wins over the card textarea if both exist.

Install

Via ComfyUI Manager: search ScenePromptViewer in the Node Pack tab. Or manually:

cd ComfyUI/custom_nodes
git clone https://github.com/yixuanzona/ComfyUI-ScenePromptViewer.git

Restart ComfyUI. It's under image → utils. There's no requirements.txt worth worrying about - the pack uses only Pillow, torch, numpy, and aiohttp, all of which ship with ComfyUI. Zero model downloads.

Gotchas

Keep batches around 20 images for smooth performance; heavier downstream nodes (upscalers especially) will eat VRAM fast, so don't cram 100 images into one queue. Hidden scenes (the ✕ button) get black placeholder images in the individual slots. And since prompt_in_N inputs are force-input, you need a text source to drive them - that's what the pack's Scene Prompt Text node is for.