Cloak is a web based tool designed to help artists protect their digital artwork from being used to train artificial intelligence models without permission. The application works by adding a layer of subtle noise to an image, which causes AI systems to detect the altered content as harmful material, such as a watermark, and subsequently refuse to include it in their training datasets. The service is offered free of charge, operates quickly, and does not require users to create an account or provide personal information, ensuring anonymity. The primary feature of Cloak is its ability to apply this invisible protection to images before they are shared online. Users can upload their artwork, and the tool processes it to embed the noise pattern. A key metric provided is the Cosine Similarity Score, which indicates how much the protected image differs from the original. The tool also includes a settings section for users to adjust the intensity of the protection. The website addresses common questions about the process with straightforward answers, focusing on transparency about how the protection works and its limitations. Typical use cases involve artists who post their work on social media, portfolio sites, or other public platforms and wish to prevent their style or specific pieces from being scraped and used by AI art generators. The workflow is simple: a user uploads an image, the tool applies the protective noise, and the user downloads the modified version for sharing. No technical expertise is required, and the process is designed to be completed in a few seconds. The tool is accessed directly through the website at cloakaap.net and does not require any software installation.