Free online Gemini image watermark remover & Gemini video watermark remover for Google Gemini, Imagen 3, Nano Banana, and Veo 3. 100% browser-local reverse alpha blending — zero uploads, no sign-up, lossless pixel restoration.
or drag images here
JPG, PNG, or WebP · Batch Gemini image watermark remover · Paste with Ctrl+V
Runs in your browser — no upload
~1s per 1MP image on a laptop
Pixel-exact restoration, matches original
100% Local(Zero Server Uploads)
Frame-by-FrameAlpha Unblending
Original Audio TrackUntouched
MP4, WebM & MOVDirect Export
No AI guesswork — stronger watermark detection and reverse alpha blending restore the original pixels under the watermark. No repaint, no blur.
Try it freeDrag or select watermarked images (JPG, PNG, WebP). Batch supported.
Runs in-browser, reverses the watermark overlay to restore original pixels. Fully local, lossless.
Download clean images as lossless PNG — one by one or as a ZIP.
Pixel-accurate restoration · batch processing · 100% local · multiple workflow options
Uses stronger watermark-region detection and calibrated alpha maps to reconstruct pixels under the watermark — no model repaint, no soft edges.
Handles Gemini logo marks, star overlays, and Nano Banana watermark variants in supported image outputs.
Drop multiple images, process in parallel in-browser, download individually or as ZIP.
All computation stays in your browser. Images never leave your device.
Accepts JPG, PNG, and WebP input at any Gemini resolution. Exports lossless PNG.
Install once and Gemini pages auto-replace previews, copies, and downloads with clean versions.
pnpm dlx for zero-install runs or install globally. Supports image batches, CI/CD integration, and local video cleanup for .mp4, .webm, and .mov via CLI/SDK.
Works on major browsers and mobile. CLI covers Windows, macOS, and Linux.
MIT licensed, no usage limits, no account required.
Pick the path that matches where you already work: Gemini page, video cleanup, terminal, or agent.
Remove watermark nowUnWatermarkGemini (unwatermarkgemini.com) is a free, 100% browser-local Gemini watermark remover engineered to remove Gemini watermark overlays from both still photos and AI video clips without AI inpainting blur. Because Google Gemini, Imagen 3, Nano Banana, and Veo 3 composite a translucent white four-pointed star (L = 255, peak α ≈ 0.502) onto the bottom-right corner using deterministic alpha blending, our engine algebraically inverts the exact pixel equation in under 50ms per frame.
Automatically detects standard 48×48px masks (for images ≤1024px with 32px corner margins) and 96×96px masks (for 2K/4K images >1024px with 64px corner margins). Includes sub-pixel Normalized Cross-Correlation (NCC) template matching, JPEG 8×8 DCT perimeter deblocking, batch parallel processing, and lossless PNG/ZIP export.
Decodes Google Gemini and Veo 3 video streams frame by frame directly inside your browser. Applies calibrated reverse alpha unblending paired with a 3-frame temporal median filter to eliminate inter-frame corner flicker while preserving your original audio track and frame rate with zero server uploads.
Why deterministic reverse alpha math outperforms generic AI object erasers when you remove Gemini watermark overlays:
| Feature / Metric | UnWatermarkGemini (Reverse Alpha) | Generic AI Inpainting Tools | Manual Cropping |
|---|---|---|---|
| Restoration Method | Exact algebraic inversion: (W − α·255)/(1 − α) | Hallucinates / smudges corner pixels | Cuts off 6%–12% of image frame |
| Pixel Accuracy (PSNR) | 99.8% lossless original pixel recovery | Blurry textures & warped edges | Permanent resolution loss |
| Gemini Video & Veo 3 | Full MP4, WebM & MOV frame-by-frame support | Rarely supported or causes heavy flicker | Destroys 16:9 / 9:16 aspect ratio |
| Privacy & Uploads | 100% browser-local (zero server uploads) | Requires uploading files to cloud servers | Local manual editing |
| Speed & Pricing | <50ms per image · 100% Free & Open Source | 5–15 seconds · Paid credits / paywalls | Manual effort per file |
Calibrated mask geometry used by our Gemini image watermark remover and Gemini video watermark remover:
| Media Tier | Resolution Rule | Star Size | Corner Margin |
|---|---|---|---|
| Standard Gemini Image | Width or Height ≤ 1024px | 48 × 48 px | 32px R / 32px B |
| High-Res 2K / Imagen 3 | Width & Height > 1024px | 96 × 96 px | 64px R / 64px B |
| Nano Banana / Cropped | Any rescaled / edited dimension | 24px – 144px | Auto NCC Scan + Live Tuner |
| Gemini & Veo 3 Video | 720p / 1080p MP4, WebM, MOV | Adaptive ROI | 3-Frame Temporal Unblend |
Direct technical answers on how to remove Gemini watermark overlays using our free browser-local Gemini image watermark remover and Gemini video watermark remover.
UnWatermarkGemini (unwatermarkgemini.com) is a 100% free, lossless online Gemini watermark remover that restores original background pixels using deterministic reverse alpha blending rather than blurry AI inpainting. It includes both a dedicated Gemini image watermark remover (JPG, PNG, WebP) and a Gemini video watermark remover for Veo 3 (MP4, WebM, MOV) that run entirely inside your browser with zero server uploads and no sign-up.
Open source, browser-local, no sign-up. Start in seconds.
