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NewMastershot Studio is open: a video editor with no watermark on anything you export. Try it free

Add watermark to video

Put text or a logo on every frame. Drag it into place, resize it, and set the opacity. Processing stays on your device.

Files stay on your device

Drop a video to watermark

Add text or a logo, then drag it into place on the video. Nothing is uploaded.

Any media file this browser’s engine can read.

How to add a watermark to a video

Type a name or add a PNG logo, then drag and resize it right on the video. It snaps to the corners and center, and you set its opacity with a live preview. The watermark is drawn into the picture on your device, without uploading the video.

  1. Step 1

    Choose a video
    Pick the video you want to watermark.
  2. Step 2

    Add the watermark
    Enter text or add a logo, then size and place it.
  3. Step 3

    Download the video
    Export a copy with the watermark on every frame.

What to expect

Supported inputs
Any media file this browser’s engine can read. Logos can be PNG, JPEG, or WebP; transparent PNGs work best.
What happens
The watermark is drawn onto every frame and saved in the source format. Adding it re-encodes the picture; audio is kept.
Limits
A video track is required. The watermark becomes part of the picture and cannot be removed from the exported file later.

Private by design

Your video stays on your device

Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.

  • No upload
  • No signup
  • No watermark

Questions

Yes. Choose Image and add a PNG, JPEG, or WebP. A PNG with a transparent background looks cleanest.

The picture has to be re-encoded to draw the watermark in, so it may differ slightly from the source.