ToolGPT

Add a watermark or logo to your video

Before a clip goes online, many creators want their name or logo on it. Attach the video to ToolGPT (plus your logo, if you have one), tell it what the mark should say, and choose a corner from previews drawn on a frame of your own video.

  • Runs in your browser
  • No sign-in needed
Drop or choose your filesThe assistant opens with your files and does the rest.Choose Files
Things you can type
episode-12.mp4 · logo.png
Open ToolGPTAttach a file and describe what you need.

How it works

  1. 1

    Attach the video (and your logo)

    Add the video with the + button. For an image logo, attach a PNG with a transparent background too.

  2. 2

    Choose a position from previews

    Say what the mark should be. ToolGPT shows your frame with the mark in each corner and at the bottom centre; tap the one you like.

  3. 3

    Download the watermarked video

    The mark is burned into every frame of a new file. Your original video is not changed.

Text or logo, placed where you can see it

A watermark can be typed text — a name, a handle, a website, "Sample" — or an image you attach, such as a logo. ToolGPT previews the mark on an actual frame of your video in five positions: the four corners and the bottom centre. You can see straight away whether it covers a face or a caption before choosing.

If you do not say what the watermark should read, the assistant asks rather than inventing something.

Size and opacity that survive any resolution

The mark's size is set relative to the frame, so a 4K original and a 720p copy carry the same watermark at the same apparent size. Opacity runs from faint (10%) to fully solid; "a bit transparent" or "make it smaller" is enough to adjust it after you have seen the first result.

Text uses the browser's standard sans-serif typeface. A specific brand font is not available in this tool; if you need one, make your text into a PNG and use it as a logo.

What a watermark does not do

A watermark adds a static mark that stays in the same place for the whole video. For text that appears at a particular moment, moves, or changes between clips, use the timeline editor, which ToolGPT can open for you on a desktop browser.

It also does not hide anything. To blur out a licence plate, a face or an old logo, ask ToolGPT to blur that area instead — that is a separate tool.

The whole job runs in your browser, so neither your video nor your logo is uploaded to add the watermark.

Frequently asked questions

Can I use my own logo?

Yes. Attach the logo image alongside the video and ask ToolGPT to use it as the watermark.

Can the watermark move or appear only at certain times?

Not with this tool; the mark stays in one place for the whole video. Timed or animated text belongs in the timeline editor.

Is my video uploaded?

No. The watermark is added in your browser.

Try it with your own file

Open ToolGPT, attach a file, and type what you want done.

Open ToolGPT

More things to do with ToolGPT

See everything ToolGPT can do