offlinewebtools.com browser-local workbench
Add Video Watermark
Overlay a watermark image on your video with customizable position and size to protect your content and add branding.
Files are processed locally in your browser using WebAssembly. This input is required.
Saved FFmpeg presets (stored locally)
Preview and export
Inspect the source before running FFmpeg, then preview the generated output before downloading.
Expected output
The generated file preview, size, type, and download action appear here after processing.
Note: This tool requires uploading both a video and watermark image. Current implementation is limited to single file input. Use desktop video editing software for adding watermarks.
1.0 = original size
What this tool does
Add Video Watermark helps you overlay a watermark image on your video with customizable position and size to protect your content and add branding.
What you get
Add Video Watermark produces a direct output in this page and keeps all processing on your device, with nothing uploaded to our servers.
Report a bug
If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.