About NSFW Checker
What is NSFW Checker?
NSFW Checker is a free image moderation API that helps developers detect nudity, explicit content, and unsafe images in real-time. It is designed to be the simplest way to add content moderation to any application — one API endpoint, no signup, no API key, and 100 free requests per day.
Technology
The API is powered by Microsoft's ResNet-50, a deep convolutional neural network with 50 layers trained on millions of labeled images. It runs on a global edge network, which means inference happens on 300+ global edge locations for sub-500ms response times. Images are processed entirely in memory and never stored or logged.
Our team
Building safer platforms for developers
Our mission
Content moderation should be accessible to every developer, not just companies that can afford expensive enterprise APIs. NSFW Checker provides a free, fast, and privacy-respecting alternative that any developer can integrate in 30 seconds.
Contact
For questions, feedback, or business inquiries, feel free to reach out through our website.