Free Browser Tool

Add Watermark to Video

Add a logo or text watermark to your video for free, entirely in your browser. Your file is never uploaded, so processing is private and instant.

Upload a video

MP4, MOV, MKV, or WebM. Maximum file size: 500 MB. Nothing is uploaded — it stays on your device.

Why creators use this watermark tool

  • Your video is processed locally in your browser — nothing is ever uploaded to a server.
  • Protect your content and promote your brand with a logo, handle, or copyright notice.
  • No account, no daily limits, and no watermark added by the tool itself.

FAQ

  • No. Your video never leaves your device — everything runs locally using your browser's built-in video engine.
  • Output is MP4 when supported by your browser, otherwise WebM.
  • Maximum file size is 500 MB, limited by your device's available memory.