Remove · AI image generator

Remove the Nano Banana / Gemini watermark

Nano Banana and Gemini image outputs carry Google generator metadata and a C2PA Content Credentials block. We strip the container, generator tags, and encoder fingerprints, then inject authentic phone-capture identity.

Short answer

To remove the Nano Banana watermark, upload your file to Calabi Sanitizer — it strips Nano Banana's C2PA Content Credentials, generator metadata, and the encoder fingerprint, then injects an authentic phone-capture identity (Make, Model, GPS, timestamp). 10 free cleans, no signup, and a forensic proof card shows exactly what was removed. Nano Banana content is detected today by YouTube, Instagram, Google Search verification.

What Nano Banana writes into every export

C2PA Content Credentials

Cryptographic origin block on Gemini image exports.

Gemini source tag in metadata

XMP/EXIF generator identifier.

Compression fingerprint

Detectable by frequency-domain analysis.

Which platforms scan for it

Nano Banana content gets detected by: YouTube, Instagram, Google Search verification. Each platform has its own scanner — but they all look for the same signatures.

How Calabi removes it

Strip the metadata container — ExifTool wipe of every group, including the Content Credentials JUMBF block.
Break invisible patterns — controlled re-encode with light noise injection defeats pixel-domain watermarks.
Strip the encoder fingerprint — bitstream filter removes the editor's signature so the file's encoding profile matches a real phone.
Inject phone identity — Make / Model / Software / GPS / capture timestamp written across every metadata field.
Forensic proof card — same scan platforms use, run on the output. Green pill = clean.

10 free cleans. No card. See the proof before you download.

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Frequently asked

How do I remove the Nano Banana watermark?

Upload your file at calabilabs.com/app. The pipeline strips Nano Banana's C2PA Content Credentials, generator metadata, and encoder signatures, then injects authentic phone-capture identity. The forensic proof card shows you exactly what was removed before you download.

Does the Nano Banana watermark survive cropping or re-encoding?

Yes — that's why it's so hard to defeat with consumer tools. The watermark is embedded in the file's metadata container and encoded into the bitstream. Neither survives a regular crop or basic re-encode unless the tool specifically targets them.

Will the cleaned file still look the same?

Yes. The visible content is preserved. Changes happen at the metadata level (invisible) and at the pixel level (imperceptibly small noise + perspective shifts that defeat fingerprinting but never affect what you actually see).

Which platforms detect Nano Banana content?

YouTube, Instagram, Google Search verification all scan for Nano Banana's watermark signatures before a human ever sees the post.

Sources & references