Cloak is a free web tool that protects digital art from AI training by layering subtle, optimized noise onto images. It uses projected gradient ascent to maximize cosine similarity with a target prompt (such as "watermark"), causing large scraping pipelines to discard the images. Users upload an image, adjust parameters like protection strength and passes, and download the protected version. It includes a cosine similarity score to gauge effectiveness.
Cloak App sits in PulseGate's Image editing category. It focuses on preventing AI models from using artists' work for training by making images appear to contain watermarks or harmful content. Cloak App is a consumer product aimed at digital artists. The product is available for free. Cloak App is available on the web.
It is developed by Timothy, and the product first shipped in 2026. The project is developed in the open on GitHub with 40 commits in the last 90 days. Among its 5 catalogued features are Image Protection, Noise Perturbation, and CLIP Similarity Score.
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Cloak: Protect Your Art from AI verified by the PulseGate indexer
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