Gemini Watermark Remover
Free online tool to remove Google Gemini image watermarks.
No upload, no sign-up — 100% local, private processing.
Pixel-accurate restoration
Reverse alpha blending reconstructs original pixels mathematically — no AI guesswork, no quality loss. The cleaned photo is identical to the original.
Try it freeUse it your way
Free online tool, browser extension, CLI for bulk jobs, or AI agent skill — pick the Gemini watermark remover that fits your workflow.
Free online Gemini watermark remover
No sign-up, no installs. Runs 100% in your browser — your photos never leave your device.
Remove watermark now →Browser extension / userscript
Install once for Chrome, Firefox, or Edge. Gemini-generated images are automatically swapped with clean, watermark-free versions in real time.
CLI tool
Built for local batch jobs and CI automation
pnpm dlx @pilio/gemini-watermark-remover remove in.jpg -o out.png
# Install globally and batch process folders
pnpm add -g @pilio/gemini-watermark-remover
gwr remove ./images --out-dir ./clean
AI Agent Skill
Give AI agents a reusable Google Gemini watermark removal capability
# Call it directly inside automation workflows node skills/gemini-watermark-remover/scripts/run.mjs ...
How to remove a Gemini watermark online
Upload your photos
Drop JPEG, PNG, or WebP files with Google Gemini watermarks. Any size, bulk uploads supported.
Auto-remove watermark
Reverse alpha blending reconstructs covered pixels in-browser. No upload to any server.
Download clean images
Save watermark-free photos as lossless PNG. Download individually or bundle as ZIP.
Complete Google Gemini watermark removal toolkit
Pixel-accurate restoration · bulk automation · 100% local processing · multi-channel integration — one open-source project for every scenario.
One-click Gemini logo watermark removal
Drop a Gemini-generated image and the tool auto-detects the watermark position and size. No manual selection needed.
Lossless reverse alpha restoration
Recovers original pixel values with Reverse Alpha Blending — mathematical reconstruction, not AI guesswork.
Bulk parallel processing
Drop multiple Gemini photos at once, process in parallel in-browser, then download individually or as a single ZIP.
100% browser-local — zero uploads
All computation stays in your browser. Images never leave your device, no server involved.
All formats · all resolutions
Accepts JPG, PNG, and WebP. Auto-detects Gemini output sizes and watermark specs. Exports lossless PNG.
Chrome extension / userscript
Install once and Gemini pages are patched automatically — previews swap in real time, native Copy and Download output clean results.
CLI & SDK for developers
Run via pnpm dlx (zero install) or the global gwr command. Use --out-dir for bulk export and --json for CI/CD pipelines.
Cross-platform
Verified on Chrome, Firefox, Safari, and Edge, including mobile. CLI covers Windows, macOS, and Linux.
Free, open source, no sign-up
MIT licensed, no usage limits, no account required. 3.7 k+ GitHub Stars and growing.
Frequently
asked
questions
Is this Gemini watermark remover completely free?
Yes. No account, no payment, no usage cap, and no sign-up. The project is open source under the MIT license.
Are my photos uploaded to a server?
No. Everything runs locally in your browser. Your images stay on your device and are never sent anywhere.
How does the watermark removal actually work?
It uses reverse alpha blending. A calibrated alpha map reconstructs the pixels hidden by the Google Gemini logo watermark — no AI model repaints the image.
Is there a Chrome extension for Gemini watermark removal?
Yes. Install our userscript (compatible with Chrome, Firefox, and Edge via Tampermonkey or Violentmonkey) and Gemini-generated images are automatically cleaned in real time — no manual steps needed.
Can I bulk remove Gemini watermarks?
Yes. The online tool accepts multiple files at once and processes them in parallel. For large batches, use the CLI with --out-dir to export an entire folder.
When should I use the CLI?
Use it for large local bulk jobs, CI/CD automation, or developer workflows. Supports --json structured output and directory-based export.
Can it remove every kind of watermark?
No. It targets Google Gemini's visible logo watermark only. It does not remove invisible SynthID signals or watermarks from other sources.
What is the difference between the userscript and the online tool?
The online tool lets you upload and clean files manually. The userscript runs inside the Gemini web UI and swaps preview, download, and copy actions to cleaned versions automatically.
Ready to remove
Gemini watermarks for free?
Open source, browser-local, no sign-up. Start in seconds.