Video Studio

Add watermarks to your videos or remove logos and objects — entirely in your browser. Powered by FFmpeg.wasm, your video files never leave your device.

Tools

Watermark Tool

Overlays your logo or image onto a video at a position you choose.

How to use:

1. •Upload a video file (MP4, MOV, AVI, MKV, or WebM).
2. •Upload a watermark image (PNG recommended for transparency).
3. •Drag the watermark to the desired position in the preview.
4. •Adjust opacity and scale using the controls.
5. •Click Process to encode the output.
6. •Download the watermarked video as MP4.

Object Remover

Blurs or masks any rectangular region of a video — useful for removing logos, timestamps, or personal information.

How to use:

1. •Upload a video file.
2. •Draw a selection box over the region to remove.
3. •Choose blur intensity.
4. •Click Process to apply the mask.
5. •Download the cleaned video as MP4.

Supported formats

• •Input: MP4, MOV, AVI, MKV, WebM, and most common container formats.
• •Output: MP4 (H.264 / AAC) for maximum browser and device compatibility.

Performance

Processing happens entirely on your CPU via WebAssembly. Larger files take longer — a 1-minute 1080p video typically processes in 30–90 seconds depending on your hardware.

Privacy

No files are uploaded. FFmpeg.wasm runs the full FFmpeg toolchain locally in your browser. Once you close the tab, all in-memory file data is cleared.

Caveats

• •Very large files (>500 MB) may exceed browser memory limits on low-RAM devices.
• •Output is always H.264 MP4 to ensure compatibility. Lossless or ProRes output is not supported.
• •Alpha channel (transparency) in the output is not supported by H.264 MP4.