Type a short text, like @yourname, or pick a PNG logo, then choose the corner, size and opacity. The preview shows exactly where it sits. The video never leaves your device. It is read and saved by your browser, so there is no upload, no queue and no copy on a server.
A watermark keeps your name on a clip when it is reposted, and makes it clear the content is yours.
How to add a watermark to a video
- Drop your video on the box above.
- Choose Text and type it, or Logo image and pick a PNG, JPG or WebP file.
- Pick one of the nine positions and set the size and opacity.
- Press Add watermark and download the video.
Logo tips
A PNG with a transparent background looks cleanest. White or light logos read well on most footage; around 60 to 80% opacity keeps it visible without covering the picture.
Questions
Will mp4mini add its own watermark?
No. Only the mark you choose appears.
Can I move the watermark during the video?
No, it stays in the same place for the whole video.
Does it work on vertical videos?
Yes, the size follows the frame.