About Overlay

Add picture-in-picture, logos, or watermarks to video in your browser—free, no upload. Position and opacity controls, local export.

Tool facts

Processing
Runs locally in your browser. Source files are not uploaded to NanoPix for editing.
Available controls
Video layer & overlay media import · Position drag, scale, and opacity controls · Timeline start & duration span control
Output
Export video with composited layers

Frequently asked questions

What can Overlay do?
Add picture-in-picture, logos, or watermarks to video in your browser—free, no upload. Position and opacity controls, local export.
Are my files uploaded to your servers?
No. NanoPix runs in your browser with WebAssembly. Your video, audio, or image files stay on your device—we never receive them.
Is browser-based editing private?
Yes. Processing happens locally on your machine. Nothing is sent to NanoPix servers for encoding or storage.
Is this tool free?
Yes. NanoPix tools are free to use in a modern browser. No account is required for basic editing and export.