Files are not uploadedNo server stores, forwards or analyzes your media.
Video tool / WatermarkStandard
Add Video Watermark
Overlay a PNG or JPG watermark in a selected corner or the center.
01
Local readBrowser memory
02
Device processingWASM Worker
03
Save resultBack to your disk
0 uploads
Capability noteLarge watermark images increase memory use and are scaled before overlay.
Choose a video first, then one PNG/JPG watermark
or choose files from this device; media content is never uploaded
video/* · image/png · image/jpeg · .mkv · .movProcessing settings
Keeps transparency from the watermark image
Processed only on this deviceKeeps transparency from the watermark image
Cancel at any timeCancel terminates the Worker and clears the virtual file system.
You save the resultDirect file writing is used when available, with browser download as fallback.
How it works
Overlay a PNG or JPG watermark in a selected corner or the center.
- Choose media from this device.
- Set the options and review the local preview.
- Run the tool and save the result back to your device.
Formats
- Input
- A supported video plus one PNG or JPG image
- Output
- MP4
Privacy
Processing happens in this browser with WebAssembly. The selected media is not sent to our servers.
Limitations
Large watermark images increase memory use and are scaled before overlay.