About Watermark Remover

Watermark Remover is a free, browser-based tool for stripping the Gemini, Veo, Imagen, Nano Banana, and Google Flow sparkle watermark from AI-generated images and videos. It runs entirely in your browser using the Canvas API for images and the WebCodecs API for video — no upload, no server, no signup, no quota.

Why we built it

Every image and video generated by Google's AI tools ships with a small four-point sparkle in the bottom-right corner. For personal experiments that is fine. For client work — mockups, ad creative, presentations, posters, book covers, YouTube thumbnails — the sparkle reads as a vendor logo on a deliverable. Cropping it out changes the composition. Blurring it leaves an obvious patch. General AI inpainting smears the detail.

The right answer is to reverse the math Google used to apply the watermark in the first place. That is what this site does, in your browser, without sending a single pixel to a server.

How it works under the hood

The watermark is a fixed logo composited onto every Gemini output with a known alpha map. Reverse the blend equation pixel-wise and the original pixels come back. No AI guesswork, no generative model — just algebra. The result is byte-identical to the source outside the watermark zone, with no smear on textured backgrounds.

Video works the same way, frame by frame, with the original audio preserved bit-for-bit. Read the technical walkthrough on the How it works page.

Tech stack

• Nuxt 3 (static-prerendered SPA) for fast page loads and SEO-friendly HTML.
• WebCodecs API for hardware-accelerated video decode and encode.
• mp4box.js for demuxing the source MP4 into audio and video samples.
• mp4-muxer for muxing the cleaned video with the original audio.
• Canvas API for image reading, processing, and PNG export.
• Tailwind CSS for the dark, minimal UI.

Privacy

The tool collects nothing. No analytics, no cookies, no telemetry. Your images and videos are read into browser memory, processed in place, and written to a downloadable blob — the same flow as a calculator on your desktop. See the full Privacy Policy for the legal version of this paragraph.

Who built it

This site is a Timefade project, built by Arshad. The project is not affiliated with, endorsed by, or sponsored by Google, Alphabet, or any of their products. Gemini, Veo, Imagen, Nano Banana, and Google Flow are trademarks of Google LLC.

Use responsibly

This tool exists to help you clean up images and videos you generated yourself on Google AI surfaces. Please do not use it to strip watermarks from copyrighted material belonging to others, or to misrepresent AI-generated content as something it is not. If you publish an AI-generated image publicly, common sense — and increasingly regulators — require you to disclose that the image is AI-generated regardless of whether the visible sparkle is present.