How do I add a watermark to a video in my browser?

Drop your video into Add Watermark to Video, choose Text and type a label or choose Logo and pick an image, set the position and opacity, then click Add watermark. The video is stamped on your own device and downloads as an MP4.

Can I use my own logo as the watermark?

Yes. Switch to Logo mode and choose an image; a PNG with a transparent background works best so only the logo shows over your footage.

Can I control where the watermark appears?

Yes. You can place the watermark in any corner or in the center of the frame, and set its opacity so it is bold or subtle.

Does adding a watermark remove the video's sound?

No. The original audio is copied through unchanged — only the picture is re-encoded to add the watermark.

Can I add a copyright or text label instead of a logo?

Yes. In Text mode you can type any label, such as a copyright line or channel name, and adjust its size before stamping it onto the video.

Is my video uploaded when I watermark it?

No. Add Watermark to Video runs entirely in your browser. Your video and logo are read on your own device and are never sent to ArrayKit or any server.

Add a Watermark to Your Video

Overlay a text or logo watermark on any video — choose the corner and opacity — right in your browser, with nothing uploaded.

Add Watermark to Video runs entirely in your browser. Your video and any logo you choose are processed on your own device and are never uploaded to ArrayKit — the files you load never leave your computer.

Open the Video Trimmer

About Add Watermark to Video

Add Watermark to Video stamps a text label or a logo onto your footage right in your browser — no uploading and no waiting on a server. Type any text, from a copyright line to a channel name, and it is drawn as clean semi-bold white lettering with a soft shadow so it stays readable over bright or busy scenes; or drop in a logo image, and a transparent PNG sits neatly on top. Choose one of five placements — any corner or dead center — and dial the opacity up or down so the mark is bold or barely-there. The original audio is carried through untouched, and the result exports as a widely compatible MP4. Your video is read from your device and watermarked locally, so the file never leaves your computer. Ideal for branding clips, protecting footage before sharing, or adding a caption or credit.

Features

Add a text watermark — copyright line, channel name, or any label
Add a logo watermark from a PNG or image with transparency
Five placements: any corner or centered
Opacity control so the mark can be bold or subtle
Adjustable text size for the text watermark
Keeps the original audio and exports a clean MP4
Runs entirely in your browser — your video is never uploaded
Preview the source and the watermarked result before downloading

How to use the Add Watermark to Video

Drop a video file onto the page or click to choose one
Pick Text and type your label, or pick Logo and choose an image
Set the position and opacity for the watermark
Click Add watermark, preview the result, and download the MP4

Example

Input

Text "© ArrayKit" · bottom-right · 80% opacity

Output

watermarked MP4 with the label stamped in the lower-right corner

A text watermark placed in the bottom-right at 80% opacity — added entirely in your browser.

Common errors & troubleshooting

The watermark is hard to read on a bright scene. — Increase the opacity, bump up the text size, or move it to a corner with a darker background. The text is drawn white with a soft shadow to help it stand out.
A logo has a white or solid box around it. — Use a PNG with a transparent background. Formats without transparency will show their background colour behind the logo.
The watermark looks too big or too small. — For text, adjust the text-size slider before adding it. For a logo, resize the image file first — the logo is overlaid at its own pixel size.

Frequently asked questions

How do I add a watermark to a video in my browser?: Drop your video into Add Watermark to Video, choose Text and type a label or choose Logo and pick an image, set the position and opacity, then click Add watermark. The video is stamped on your own device and downloads as an MP4.
Can I use my own logo as the watermark?: Yes. Switch to Logo mode and choose an image; a PNG with a transparent background works best so only the logo shows over your footage.
Can I control where the watermark appears?: Yes. You can place the watermark in any corner or in the center of the frame, and set its opacity so it is bold or subtle.
Does adding a watermark remove the video's sound?: No. The original audio is copied through unchanged — only the picture is re-encoded to add the watermark.
Can I add a copyright or text label instead of a logo?: Yes. In Text mode you can type any label, such as a copyright line or channel name, and adjust its size before stamping it onto the video.
Is my video uploaded when I watermark it?: No. Add Watermark to Video runs entirely in your browser. Your video and logo are read on your own device and are never sent to ArrayKit or any server.

Related tools

Video Trimmer — Cut a clip from a video by start and end time, in your browser — nothing uploaded.
Crop Video — Crop a video to square, vertical or landscape and trim the edges, in your browser.
Video Resizer — Resize video for Reels, YouTube, square and more with letterboxing, in your browser.
Video Converter — Convert MOV, MKV, AVI, WebM and MP4 videos to MP4 or WebM in your browser — nothing uploaded.
Video Compressor — Compress video files in your browser — adjustable quality, resolution and format, nothing uploaded.
Video to GIF — Turn a clip of a video into an optimized animated GIF, in your browser — nothing uploaded.