Use the free Add Logo to Video tool below: put your logo on any MP4 or WebM video, in the corner you choose, right in your browser. Your files never leave your device.
How to add a logo to a video
Pick your video file first. MP4 and WebM work in most browsers, and MOV works if your browser can play it. Then pick your logo image. A PNG with a clear background works best, because a white box around your logo will show up on the video too. JPG logos work as well, but their background is always part of the picture.
Choose the corner for the logo: top right, top left, bottom left or bottom right. Then set the size as a share of the video width. Fifteen percent is a good starting point: big enough to read, small enough to stay out of the way. Set the opacity too. Seventy percent looks solid but slightly soft; one hundred percent is fully solid, and lower values let the video show through the logo.
The preview frame under the controls shows the logo placed on your video before you process anything. Move it, resize it or fade it until it looks right, then press the button. The tool plays your clip once, draws each frame with the logo on top, and records the result. Download the finished video, and if the logo looks wrong, change the settings and run the original file again.
Worked example: a small logo in the top right corner
Here is a real run of this tool, made with a short test clip and a simple red logo. The test clip was 320 pixels wide and 180 pixels tall, lasted 2.0 seconds, and was 29.7 kilobytes. The logo was a plain red rectangle, 100 pixels wide and 50 pixels tall.
The logo was placed in the top right corner, at 15 percent of the video width and 70 percent opacity. That made the logo on the video 48 pixels wide and 24 pixels tall. After processing, the downloaded video stayed 320 by 180 pixels, lasted 2.12 seconds, and was 113.1 kilobytes in MP4 form, because this browser saves MP4 output. The sound track stayed with the picture.
To check that the logo really was burned in, one frame of the finished video was examined. In the top right logo zone, 1,165 of 1,225 pixels were strongly red, which matches the red logo placed there. The logo is not a separate layer sitting on top of the player: it is part of the picture itself, in every frame, from start to finish.
When this tool is useful
The most common use is branding. A small logo in a corner tells viewers who made the video, even after it is shared, reposted or downloaded somewhere else. Because the logo is burned into the picture, it survives sharing in a way a caption or a title does not.
Teachers and small businesses use watermarks to mark lesson clips, product demos and course previews. A faded logo in a corner marks the work without blocking the lesson. Event organisers mark highlight clips the same way, so a clip found out of context still points back to the event.
Creators also use a logo to stop plain re-uploads. A watermark does not make copying impossible, but it makes a stolen copy easy to spot and less useful to the copier. Keep the logo modest: a huge logo in the middle of the frame annoys honest viewers far more than it hurts copiers.
Honest limitations
The output is re-encoded, not a lossless edit. The picture is drawn again and compressed again, so a small loss of sharpness is possible. Keep your original file, and add the logo once, from the original, rather than adding logos to an already watermarked copy.
Processing takes about the length of the clip, because the tool plays the video in real time while it records. A two-minute clip takes about two minutes, and you should keep the browser tab open until it finishes.
The logo is burned in permanently. Once you download the video, the logo cannot be removed from it, moved to another corner, or made fainter. Check the preview frame carefully before you process, and keep an unmarked copy of your video in case you change your mind. The output format depends on your browser: Chrome, Edge and newer Safari save MP4, while Firefox saves WebM, and the tool tells you which format you will get before you start. Files never leave your device.
Frequently asked questions
Can I remove the logo later?
No. A burned-in logo is part of every frame of the downloaded video. That is the point of a watermark, but it also means you should keep your original, unmarked video safe.
What logo file works best?
A PNG with a clear background, with your logo drawn in solid shapes. Avoid a JPG with a white box around the logo, because that box becomes part of the video picture too.
Will the logo cover important parts of my video?
It can, if it is too big or sits over faces or text. Use the preview frame to check, keep the size near 15 percent of the width, and pick a corner that is usually empty in your clips.
Does the sound stay with the video?
Yes. The audio track from your original clip is carried into the recording, so the watermarked video still has its sound.
Spanish version: Añadir Logo a Video Online