How the video cleaner works
Your video plays through a canvas in your browser. On every frame, each box you drew is repaired by one of four methods:
- Fill from edges: each hidden pixel becomes a distance-weighted blend of the pixels just outside the box, the same idea as FFmpeg’s
delogofilter. It works best on small marks over simple backgrounds. - Blur and pixelate hide a mark without pretending it was never there.
- Solid paints a flat colour, which is useful for letterbox captions.
The frames are re-recorded with the original audio into a new MP4 (or WebM on browsers that can’t record MP4). Nothing is uploaded, so rendering takes about as long as the video plays. Keep the tab open until it finishes.
Getting a cleaner logo removal
- Make the box just a few pixels larger than the logo: bigger boxes blur more scene.
- If the logo is semi-transparent over a moving scene, blur often looks more natural than fill.
- Animated intro logos that fade in and out: set the box’s start and end time to just those seconds.
Your own videos only
Platform watermarks credit the creator. Use this on videos you made, for example to repost your own clip to another platform, not to pass off someone else’s video as yours.
Questions
How do I remove a logo from a video without software?
Open the video on this page, drag the box over the logo and press Render. It runs in Chrome, Safari, Edge and Firefox.
Can it remove a logo that moves?
Add one box per position and give each a time range. Continuously moving logos need several short boxes.