Developer shares browser tool to remove Google Gemini sparkle watermarks

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Google Gemini images and Veo/Flow video clips are automatically stamped with a small sparkle watermark in the corner. While Google is rolling out a built-in watermark toggle, it only affects newly generated content and requires an Ultra subscription in some regions like India. A developer has shared a free browser-based tool called Unmark.ink that can remove the sparkle from still images instantly without requiring an account. For video files, the tool processes the MP4 via a cloud job that stores the file until the user downloads it. The developer, who is also the tool's creator, noted that exported files already saved by users retain the watermark and this workflow was built as a practical alternative to cropping.

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