Images stay in the browser
Image analysis and processing happen in your browser. No account or image upload is needed. When analytics is enabled, the site sends usage and error events.
Analyze, process, and check your image.
Processed in your browser. No uploads needed.
Core facts
Unmarker.it checks for AI clues in your image, attempts to remove visible Gemini / Nano Banana sparkle marks, and applies changes designed to disrupt hidden watermarks. Hidden-watermark removal cannot be confirmed by this tool.
Image analysis and processing happen in your browser. No account or image upload is needed. When analytics is enabled, the site sends usage and error events.
Choose an image once. The tool reads metadata (information stored in the file), checks for a Gemini sparkle mark, processes supported images, then checks the JPEG output again.
Process browser-readable images up to 40 megapixels and 25 MB. The output is a compressed JPEG and may lose detail. PNG, JPEG, WebP, AVIF, HEIF, and JXL also support metadata analysis when image processing is unavailable.
Compare the original and processed image before downloading. Results vary by image and watermark method; processing does not guarantee that a watermark is removed or undetectable.