Add a Logo Watermark to a Video, Free
Burn your logo or a watermark image onto a video — in your browser.
Select an audio or video file
MP3, WAV, M4A, MP4, MOV, WebM — transcribed in your browser with Whisper
Click to choose, or drop a file here
About adding a watermark to a video in the browser
A logo bug in the corner, a brand mark on an outro, a photographer's or creator's credit — this burns an image you provide onto every frame of a video, at whatever corner, size and opacity you choose, so it travels with the video wherever it's posted.
The logo image is drawn onto each frame at a fixed position and size, then the video is re-encoded back into the same container it came in as. A PNG with a transparent background gives the cleanest result, since the logo's own shape is what shows — no background box around it. Everything happens on your device through WebCodecs; nothing is uploaded.
Supported files
Accepts MP4, MOV, WebM video and PNG, WebP or JPG for the logo. Produces a video in the same container.
Is my file uploaded?
No. The watermark is burned into the video entirely in your browser.
How to Add Watermark to Video
- 1
Add your video
Drop in an MP4, MOV or WebM — it's read in your browser, never uploaded.
- 2
Add your logo
Drop in a PNG, WebP or JPG — a PNG with a transparent background works best.
- 3
Position and download
Pick a corner, size and opacity, then click Add watermark.
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Add Watermark to Video — frequently asked questions
Is my video uploaded?+
No. The logo is burned into the video entirely in your browser.
What image formats work for the logo?+
PNG, WebP or JPG. PNG with a transparent background looks best, since the logo is drawn exactly as-is over the video.
Can I make the watermark semi-transparent?+
Yes — the opacity slider goes from barely-there to fully solid.
Which browsers work?+
Chrome, Edge and Safari 17+ — burning it in needs WebCodecs.
Do you upload my files to a server?+
No — every tool here processes your files entirely on your device, and nothing is uploaded to a server. The only exception is the AI tools, which send the extracted text (not the file) to Claude to do their work.
Is there a file size limit?+
There's no artificial limit we impose, but since processing happens in your browser, very large files (500+ MB or 1,000+ pages) are limited by your device's memory rather than by us.
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