Gemini透かし除去 — AI画像・動画スパークル除去ツール

Gemini、Omni Flash、Nano Banana、Veo動画の透かしをAI画像・動画から即座に除去。無料、100%ローカル、登録不要。

Gemini Watermark Remover powered by OneShotSEO.com — instantly clean the visible sparkle overlay from AI-generated visuals, right inside your browser. This extension restores your content to a professional state in one click using advanced reverse alpha-blending, entirely on your device. Designed for creators, designers, marketers, and developers who work with AI-generated content every day. Everything processes 100% locally — zero uploads, zero servers, zero tracking. Your privacy is fully protected. Start free with 5 images and 2 videos per day, credit resets in every 24 hours — or upgrade to Premium for unlimited access and batch support. ━━━━━━━━━━━━━━━━━━━━━━━ HOW IT WORKS ━━━━━━━━━━━━━━━━━━━━━━━ This extension uses reverse alpha-blending to mathematically reconstruct the original pixels hidden beneath the semi-transparent sparkle overlay. Unlike blur, crop, or inpainting tools, this approach delivers lossless results on PNG and near-lossless quality on JPEG and WebP — preserving every detail of your original creation. For AI-generated videos, each frame is processed individually using WebCodecs, ensuring smooth, artifact-free output without quality loss or flickering. ━━━━━━━━━━━━━━━━━━━━━━━ KEY FEATURES ━━━━━━━━━━━━━━━━━━━━━━━ ▸ One-Click Cleanup — Upload your file and the sparkle is detected and cleaned automatically. Download the result instantly — no manual editing needed. ▸ Works with All Google AI Models — Compatible with outputs from Gemini Flash & pro, Nano Banana, Veo (including 3 and 3.1), Omni Flash, and Google Flow. ▸ 100% Local & Private — All work happens entirely in your browser. No files are ever sent to any server. Your content stays on your device, always. ▸ All Formats Supported — Works with PNG, JPEG, and WebP files up to 50 MB. Also supports MP4 and MOV up to 200 MB. ▸ Drag & Drop or Paste — Simply drag your file into the extension, click to browse, or paste with Ctrl+V. ▸ Batch Support (Premium) — Process up to 5 files at once. Perfect for bulk content creation workflows. ▸ AI Studio Compatible — Works seamlessly with content generated through Google AI Studio (aistudio.google.com). ━━━━━━━━━━━━━━━━━━━━━━━ FREE PLAN vs PREMIUM PLAN ━━━━━━━━━━━━━━━━━━━━━━━ STARTER PLAN (No Sign-Up Required): ▸ Up to 5 images and 2 videos per day ▸ Single-file cleanup ▸ Full-quality lossless output ▸ 100% local, private operation ▸ History with thumbnails ▸ All core features — no account, no email, no registration PREMIUM PLAN (Unlimited Access): ▸ Unlimited daily usage — no caps ▸ Batch mode — up to 5 files at once ▸ Priority support and early access to new features ▸ One-time lifetime payment option available ▸ License key activation — works on 1 device (deactivate anytime to switch) ━━━━━━━━━━━━━━━━━━━━━━━ SUPPORTED PLATFORMS ━━━━━━━━━━━━━━━━━━━━━━━ ▸ gemini.google.com ▸ Google AI Studio (aistudio.google.com) ▸ Google Flow ▸ Google Omni ▸ Any file downloaded from these platforms ━━━━━━━━━━━━━━━━━━━━━━━ WHY CHOOSE THIS EXTENSION? ━━━━━━━━━━━━━━━━━━━━━━━ ▸ Mathematically Precise — Uses reverse alpha-blending to recover the original pixels, not AI guessing or blurring. ▸ Works Offline — No internet connection required. Everything runs locally in your browser. ▸ No Account Needed — Install and start immediately. No sign-up or registration required. ▸ Trusted & Maintained — Regularly updated with support for the latest Google AI models. ▸ Lightweight — Small footprint. No bloat, no ads, no popups. ▸ 53 Languages — The entire interface adapts to your browser language automatically. ━━━━━━━━━━━━━━━━━━━━━━━ HOW TO USE ━━━━━━━━━━━━━━━━━━━━━━━ 1. Generate content on any supported platform (see list above). 2. Download the original file using the platform's download button. 3. Open the extension and select the appropriate tab. 4. Drag and drop your file, click to browse. 5. The sparkle is automatically detected and cleaned. The result downloads to your device instantly. Important: For best results, always use the original downloaded file. Screenshots or edited versions may break the pattern and prevent successful removal. ━━━━━━━━━━━━━━━━━━━━━━━ PRIVACY & PERMISSIONS ━━━━━━━━━━━━━━━━━━━━━━━ This extension does not collect, transmit, or store any user data. All work is performed 100% locally in your browser. Only the minimum permissions are requested. No analytics, no tracking, no third-party data sharing. Your files never leave your device. ━━━━━━━━━━━━━━━━━━━━━━━ BULK TOOL ━━━━━━━━━━━━━━━━━━━━━━━ Need to clean batches of AI-generated files at once? Visit our online batch tool: https://www.oneshotseo.com/gemini-watermark-remover/ Install today and get clean, professional AI content in seconds. ━━━━━━━━━━━━━━━━━━━━━━━ Disclaimer ━━━━━━━━━━━━━━━━━━━━━━━ OneShotSEO is an independent tool and is not affiliated with or endorsed by Google LLC. All product names mentioned are trademarks of their respective owners. This extension removes only the visible sparkle overlay and does not modify invisible SynthID metadata.