Add an image logo or text watermark to any video, processed entirely in your browser, files never uploaded.
Your video is processed locally with FFmpeg running in your browser. Nothing is uploaded; the file never leaves your device. First use downloads the ~31 MB engine once. Files up to 200 MB.
PNG with transparency works best.
Loading engine…
A watermark is the simplest way to claim ownership of footage that travels: once your logo or name is burned into the frames, every screenshot, re-share, and re-upload carries it along. This tool overlays an image logo (a transparent PNG works best) or a line of white text with a subtle dark backing, scaled and positioned exactly where you want it on the frame.
Watermarking happens locally in your browser through a WebAssembly build of FFmpeg. The video is re-encoded with H.264 at high quality, and the watermark becomes part of the picture itself, not a separate track that a player, editor, or platform can strip out. Rendering text over every frame takes a little longer than a straight copy, so longer clips need a bit of patience.
Related jobs: cutting the clip before stamping it (Video Trimmer), converting the result for a specific platform (Video Converter), or turning a short sequence into an animated (Video to GIF).
Yes. The watermark is rendered into the video pixels themselves, so it travels with every copy. Even if a platform re-compresses your video or someone records their screen, the watermark stays visible; it can only be cropped out or covered, never toggled off.
Minimal. The video is re-encoded once with H.264 at a high-quality setting (CRF 23), which keeps the change visually negligible for most footage. Semi-transparent text and reasonably sized logos blend into the picture without forcing extra bitrate.
Yes, transparent PNG is the recommended logo format. The alpha channel is preserved by the overlay filter, so only your artwork shows, with no white box around it. JPG logos work too, but their solid background becomes part of the stamp.
Text is rendered onto every single frame with a font engine (a staged Inter font file), which costs extra processing on top of the re-encode. An image logo composites faster. Either way, longer and higher-resolution videos take proportionally longer.
No, a burned-in watermark is permanent in the output file. That is the point: it cannot be stripped the way a separate metadata field or subtitle track can. Always keep your watermark-free original so you can re-position or re-style later.