Conceal a Mark in a Video Online and Cover the Selected Area

Remove a Mark from a Selected Area of a Video You Are Authorised to Edit

Nujiz Conceal Video Watermark lets you select the region containing a watermark or unwanted mark and submit the clip for AI-assisted processing. The tool does not automatically discover the watermark position. The rectangle you place over the preview becomes the processing mask. Use it only on video you own or are authorised to modify.

Select the marked area carefully

After choosing the video, position the selection rectangle over the mark and adjust its size so it covers the required area without being unnecessarily large. The coordinates selected in the preview are converted into the mask used for processing.

How processing works

This tool is not fully on-device. The video and selected region are sent to the processing service, where AI-assisted video processing attempts to reconstruct the area covered by the mask across the relevant frames. When processing finishes, an MP4 result is prepared for download.

Results depend on the scene

Processing is easier when the marked region is well defined and the content behind it can be reconstructed. Fast movement, fine detail, scene changes or a mark placed over moving subjects can make the result vary across the clip. Review the processed video before using or publishing it.

Frequently Asked Questions

Does the tool detect the watermark automatically?

No. You manually select the area to process by positioning the rectangle over the video preview.

Is processing performed entirely in my browser?

No. The video and selected region are sent to the processing service for AI-assisted removal.

Is removal guaranteed for every video?

No. Results depend on the background, movement, selected area and visual detail around the mark.

Can I use it on any video?

Use the tool only on video you own or have the necessary rights or permission to modify.