Miaomiao AI Video Watermark Adder is a free online tool that lets you add text or image watermarks to your videos directly in the browser. No software download, no registration, no ads. Your video is processed locally and never uploaded to any server, ensuring complete privacy protection.
Supported formats: MP4, MOV. Processed in browser using WebCodecs technology.
Videos are processed in your browser. No upload, no server storage.
Add custom text with your choice of font, color, and size, or overlay an image logo.
Random position, floating animation, and high-protection modes to prevent content theft.
Core features are completely free. No account needed, just upload and go.
Upload your video file (MP4, MOV supported).
Select text or image watermark and customize content.
Drag watermark to desired position, adjust size and opacity.
Click start, then download the watermarked video.
No, the tool uses Canvas rendering to overlay the watermark layer, which does not significantly affect the original video quality.
MP4 and MOV are supported. MP4 is recommended for best compatibility across platforms.
Yes, you can freely drag the watermark to any position on the video, or use random mode to make it appear at different positions over time.
No, all processing happens in your browser using WebCodecs technology. Your video never leaves your device.