Simple Unmark

Simple Unmark is a web-based tool designed to remove watermarks embedded in AI-generated text. It addresses two types of watermarking mechanisms: hidden Unicode characters that are literally embedded in the text, and statistical watermark patterns created through token choices in models like Gemini and Claude.

The tool offers a two-pronged approach to cleaning text. For Unicode artifacts, it removes the hidden characters directly. For statistical watermarks, it rewrites the text to eliminate the token-choice patterns while preserving the original meaning, facts, numbers, proper nouns, tone and intent. Users simply paste their AI-generated text and receive cleaned output they can copy and use.

Simple Unmark is built for content creators, researchers, and users of AI tools who need to remove watermark detection signals from generated text. It integrates with ChatGPT's Site tools feature and works locally in the browser for privacy.