Gemini images can carry three different layers: removable file metadata, a visible corner mark, and an invisible pixel-embedded SynthID signal. The free local tool handles supported metadata and known visible marks; cloud processing is never automatic and appears only as an optional next step for invisible watermark work.
Visible Gemini corner marks only. Output is a newly encoded PNG with supported metadata cleaned. SynthID is not tested or removed.
Powered by gemini-watermark-remover · MIT · Metadata-only cleaner
The browser detects supported Gemini corner-mark layouts, applies local reverse-alpha correction when matched, exports a PNG, removes supported file metadata, and rechecks the output without sending the image anywhere.
Pixel-embedded SynthID cannot be removed by metadata stripping or the visible-logo tool. Continue only if you own the image, accept cloud upload and possible image reconstruction, and need this separate processing step.
Metadata, the visible Gemini corner mark, and invisible SynthID are reported as separate layers so a successful local cleanup is not presented as universal removal.
Known Gemini corner marks are matched and corrected in the browser. The original file remains untouched and no image API is called.
The paid external option is shown separately for invisible watermark processing. Nothing is uploaded until you leave AI MetaClean and choose the provider yourself.
The local engine supports known visible Gemini corner-mark layouts, not every resized, cropped, edited, or future variant. SynthID cloud processing is lossy or best-effort and does not prove human authorship or erase provider-side records.
File formats are messy. These answers describe the supported behavior of this version—not a promise that every trace everywhere has disappeared.
Supported visible Gemini corner marks and supported image metadata are handled locally. The tool exports a new PNG and rescans supported metadata before download.
Only when you specifically need a separate attempt to disrupt an invisible pixel-embedded SynthID signal. Ordinary metadata cleanup and supported visible-mark removal remain free and local.
No. AI MetaClean performs the local step without uploads. The cloud button opens an independent provider with its own checkout, upload, retention, and result terms.
