I am the developer of WatermarkLift, a free, no-signup browser tool for reviewing and removing supported visible bottom-right Gemini star watermarks from images you own or may edit.
Images are processed locally in your browser, without image uploads or an external model API. Import opaque, static PNG, JPEG or WebP files within the published file and pixel limits. Compare each result with its original and inspect the corner at 1:1. Uncertain or failed cases keep the original.
Download accepted results as edited PNGs, exact original files separately, or a ZIP containing accepted PNGs only. Up to 10 images per batch. Results are approximate; PNG re-encoding may change metadata. No dedicated SynthID/C2PA removal or verification, video, or arbitrary-watermark support.
Use WatermarkLift free | Steps, examples and limitations
One finite MIT-licensed upstream sample, not an accuracy or losslessness benchmark:
Original corner:
Actual WatermarkLift result:
Credits: 2025 Jad and 2024 AllenK (Kwyshell). MIT license and attribution. Keep the original and review each edit.
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