ComfyUI – Load & Resize Image + Filename

A lightweight ComfyUI custom node that extends the well-known KJNodes LoadAndResizeImage with an additional filename STRING output so you can feed the loaded file's name directly into downstream nodes (e.g. save nodes, text nodes, prompt builders).

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Features

Output	Type	Description
image	IMAGE	Loaded image as a float32 tensor (B, H, W, 3)
mask	MASK	Alpha channel extracted as a (B, H, W) mask tensor
width	INT	Final image width (after optional resize)
height	INT	Final image height (after optional resize)
filename	STRING	File stem without extension (e.g. my_photo)

Inputs:

Input	Default	Description
image	—	File picker (same as standard ComfyUI Load Image)
resize	False	Enable resizing
width	512	Target width
height	512	Target height
keep_proportion	False	Scale uniformly to fit within width × height
divisible_by	2	Round output dimensions to a multiple of this value
upscale_method	lanczos	Interpolation: nearest-exact / bilinear / area / bicubic / lanczos

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Installation

Via ComfyUI Manager (recommended)

Search for "Load & Resize Image + Filename" in ComfyUI Manager.

Manual

cd ComfyUI/custom_nodes
git clone https://github.com/Slartibart23/ComfyUI-LoadResizeImageWithFilename

Restart ComfyUI – no extra dependencies required beyond what ComfyUI already ships.

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Requirements

• Python ≥ 3.9 (tested on 3.13)
• ComfyUI (any recent version)
• torch, Pillow, numpy — all provided by ComfyUI's environment

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Usage example

[Load & Resize Image + Filename]
       │                   │
    IMAGE                STRING (filename)
       │                   │
  [Your model]     [Save Image KJ]  ← filename_prefix connected here

The filename output carries only the stem (no path, no extension), e.g.:

Uploaded file	filename output
portrait_001.png	portrait_001
my photo.jpg	my photo
frame_0042.webp	frame_0042

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Credits

• Node logic based on KJNodes LoadAndResizeImage by kijai — MIT License
• Filename output extension by Slartibart23

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License

MIT — see LICENSE.