Add Watermark to Video — Free Online Tool

Add watermark to MP4 and GIF videos online. Logo overlay, text watermark for videos. Browser-based FFmpeg processing. No upload needed.

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🔒 100% private — your files never leave your device

Protect your video content with professional watermarks. Add text, logos, or copyright notices to MP4 videos and animated GIFs directly in your browser using FFmpeg WebAssembly. No server uploads, no file size limits. Your videos stay private on your device throughout the entire process.

What makes us different

🔒 100% Local Privacy

All processing runs inside your browser memory using WebAssembly and WebGPU. No servers. No storage.

📦 True Batch Engine

Drag folders or ZIP files. Design once. Export a complete protected ZIP instantly.

✨ AI Auto Placement

Local TensorFlow.js detects faces and positions watermarks intelligently.

FAQ

❓ What video formats are supported?

MP4 and animated GIF files. The tool uses FFmpeg WASM for professional-grade video processing.

❓ Are my videos uploaded anywhere?

No. Everything runs in your browser memory. Your videos never leave your device.

❓ Can I add animated watermarks?

You can add text, logos, and QR codes as overlays on every frame of your video.

How It Works

1. Upload Media

Drag and drop your photos, PDFs, or videos. Nothing is ever uploaded to a server.

2. Design & Position

Apply custom text, upload logos, or generate stock-photo style grid patterns instantly.

3. Export Batch

Click export. Everything is processed locally on your device in seconds via WebGPU.

🔧 More Tools

→ Add Watermark to Image Online Free → Add Watermark to PDF Online Free → Batch Watermark Multiple Images Online Free → Free Online Image Editor

Your files. Your device. Your control.

MediaWatermark Pro is part of the B2R ecosystem — building privacy-first digital infrastructure.

Start Protecting Your Media →