Your platform accepts user-uploaded images. You need to filter out inappropriate content before it reaches other users. Two options: install NudeNet , the most popular open-source NSFW detection library (2,300+ GitHub stars), or call a cloud NSFW detection API that handles everything server-side. This guide tests both on the same images and compares what they catch, what they miss, and what it costs to run each in production.

Want to test on your own images? Try the NSFW Detect API on a few uploads.

Quick Comparison

NSFW Detect API NudeNet

Categories 10 (nudity, violence, drugs, alcohol, tobacco, gambling, hate symbols, etc.) 1 (nudity only)

Label structure Hierarchical (3 levels) Flat (body parts)

Setup API key pip install nudenet + ONNX model download

GPU Not needed Optional (faster)

Accuracy 93-98% across categories ~90% on nudity

License Commercial AGPL-3.0

What NudeNet Does

NudeNet is a Python library that detects nudity in images.…