Watermark Remover/Adder — delogo + overlay, In-Browser

How to use

1. Mode: remove (set box) or add (drop PNG + position).
2. Drop video.
3. Run → download.

About this tool

Two honest jobs in one tool. Removing: give the box (x, y, w, h) of a logo burned into footage you own (old camcorder stamps, your own drafts) and FFmpeg's delogo interpolates it away. Adding: drop your PNG and position it — burn your mark into your content before you share it. Removing watermarks from content you don't own is infringement; the tool's notice says so plainly. Your file never leaves this page — processing runs in your browser via WebAssembly; nothing is uploaded and the file is dropped from memory when you close the tab.

FAQ

Rate this tool

Your rating stays in this browser (local storage) — nothing is sent to any server.