Extensions/NSFW Guard
ComfyUI Extension

NSFW Guard

NSFW content detection node for ComfyUI - blocks inappropriate images automatically using YOLOv9 model.

By vuhung3990·Created 7 months ago·Updated 4 months ago· 2
vuhung3990/comfyui-nsfw-guard
Nodes5
On cloudLocal install
Categorysafety
Stars2
Updated4 months ago

Nodes (5)

NSFW Check (HF Classifier)

The one-node version — load and classify in a single drop

safety
NSFW Check (HF, Shared Model)

The gate that actually looks — and hard-stops the run if it's NSFW

safety
NSFW Filter Policy (Label Table)

Five independent toggles when the strictness ladder doesn't fit

safety
NSFW Filter Policy (Level 1-4)

A strictness dial instead of five checkboxes

safety
NSFW Load Model + Filter Policy (HF)

Load the classifier once, check as many times as you want

safety
Readme

ComfyUI NSFW Guard (Viddexa)

Custom ComfyUI nodes for NSFW filtering with Viddexa models.

Supported model repositories:

  • viddexa/nsfw-detection-2-nano
  • viddexa/nsfw-detection-2-mini

Preferred backend:

  • moderators (PyPI)

Fallback backend:

  • transformers

Installation

  1. Go to your ComfyUI custom_nodes folder:
cd ComfyUI/custom_nodes
  1. Clone this repository:
git clone https://github.com/Trunk-png/comfyui-nsfw-guard-viddexa.git
  1. Install dependencies:
pip install -r comfyui-nsfw-guard-viddexa/requirements.txt
  1. Restart ComfyUI.

NSFW Policy

  • Blocked classes: porn, hentai, sexy
  • Allowed classes: safe, drawing

When NSFW is detected, the node:

  • sends nsfw_guard.content_blocked
  • calls interrupt_processing(True)
  • raises an error with type nsfw_content_detected

Nodes and Images

1) NSFW Load Model (HF)

NSFW Load Model

What this node does:

  • Loads one selected model (nano or mini)
  • Outputs NSFW_GUARD_MODEL
  • Lets you reuse the same loaded model across multiple check nodes

2) NSFW Check (HF, Shared Model)

NSFW Check Node

What this node does:

  • Takes nsfw_model from NSFW Load Model (HF)
  • Takes image input
  • Optional input: block_policy from policy nodes
  • Classifies the image and blocks if predicted class is porn, hentai, or sexy
  • Passes image through if class is safe or drawing

3) NSFW Check (HF Classifier) (single node)

Load And Check In One Node

What this node does:

  • Combines model loading + NSFW check in one node
  • Simpler to use for one check point
  • For multi-point checking (input + output), the shared-model flow is more efficient

Recommended Workflow (Load Once, Check Multiple Times)

                 +-> [NSFW Check (HF, Shared Model)] -> (input-side check)
[NSFW Load Model]
                 +-> [NSFW Check (HF, Shared Model)] -> (output-side check)

This loads the model once and reuses it.

Extra Policy Nodes

NSFW Filter Policy (Level 1-4)

Level mapping:

  • Level 1: block porn
  • Level 2: block porn, hentai
  • Level 3: block porn, hentai, sexy
  • Level 4: block porn, hentai, sexy, drawing

NSFW Filter Policy (Label Table)

Available labels:

  • porn
  • hentai
  • sexy
  • drawing
  • normal

You can select one or multiple labels to block, then connect the output to block_policy on check nodes.

Reference of model check NSFW