Hopefully I will be able to create some useful nodes for ComfyUI. I just started making these, using LLMs for coding purposes, with no previous coding experience. However, I can see myself learning more and more.

Path Tool

This node dynamically generates a filename prefix for saving files into an organized folder structure.

What it does:

• It constructs a path in the format: [root_directory]/[current_date]/[filename].
• You can choose between a primary base_path and an alt_path using a boolean toggle.
• It automatically creates a subfolder named with the current date in YYYY_MM_DD format (e.g., 2023_10_27).
• It sanitizes the path and filename to remove any invalid characters, ensuring a safe output.
• The final string is intended to be connected to the filename_prefix input of a "Save Image" or similar node.

Color Match Falloff

Code is a modified version of Kijai's ComfyUI-KJNodes Color Match node https://github.com/kijai/ComfyUI-KJNodes

It keeps the original functionality with a small addition:

• Smoothly fades the color transfer effect over a sequence of frames (falloff_duration).
• Uses an ease-in-out curve (strength 1 → 0) to reduce color flicker.
• Handy for stitching video clips generated in separate batches (last→first) e.g. with WAN 2.1.

Color Picker

Minimal color picker that outputs two convenient formats you can wire into other nodes.

• Input: COLOR widget (also accepts manual "R,G,B" or JSON [R,G,B], 0–255).
• Outputs: hex (e.g., #7F7F7F) and rgb_csv (e.g., 127,127,127).
• Great companion for Sequence Blend (rgb_csv → blend_color_rgb).

Sequence Blend

Flexible sequence blending with either a solid color or an image, including common blend modes and HSL-based modes.

• Modes: normal, screen, additive color, overlay, multiply, color burn, difference, saturation, hue, color.
• Source: color (via blend_color_rgb) or image (layer_sequence).
• Strength per-frame: single float or list/tensor via scales_any; optional override_last_strength.
• HSL modes: saturation (H+L from base, S from source), hue (S+L from base, H from source), color (L from base, H+S from source).
• Resize: source auto-resized to base using selected interpolation (lanczos, bilinear, bicubic, nearest, area via OpenCV if available).
• Alpha: RGBA supported; source treated as premultiplied; base alpha preserved.

Image Difference to Alpha

Builds a difference overlay between A and B (or a solid HEX color) and optionally composites it over a background.

• Overlay RGB: diff (colorized abs(A−B)), image_b (when source=image), or black.
• Overlay Alpha: strength of the difference by channel max (default) or mean; optional normalization.
• Boost: multiply difference to make subtle changes visible.
• Special: when source=hex_color and image_b is connected, the overlay (A vs HEX) is composited over image_b (over: overlay*alpha + bg*(1−alpha)) and returned. Otherwise the node outputs the standalone RGBA overlay.
• Batch/size: handles batches; auto-resizes secondary inputs to match A.

Sequence Content Zoom

Zoom-in/out while keeping the frame size unchanged.

• s ≥ 1.0 (zoom-in): center (or aligned) crop + resize back to full frame.
• s < 1.0 (zoom-out): scale content down and pad with a background color (pad_rgb).
• Alignment: crop_align and pad_align (center, corners, edges).
• Scales: single or list/tensor via scales_any; optional override_last_scale.
• Interpolation: lanczos, bilinear, bicubic, nearest, area (OpenCV if available).
• Alpha: RGBA preserved; alpha resized bilinearly.

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More nodes and tweaks soon ✌️