Tool

AI YouTube thumbnail designer

AI YouTube thumbnail generator: describe the video and it draws the whole thumbnail, words included, in any language. Free account: 2 thumbnails, no card.

The video

One or two sentences. If this video is already in Runsheet, open it instead and the thumbnail reads its real title and description.

Thumbnail designer

entirely generated

Reads this video's title and description and draws the whole thumbnail, words included. Nothing to lay out and nothing to pick: one image, every time, about twelve seconds. Any language, including scripts the free thumbnail maker cannot set.

Shape
A Short needs its own vertical cover.
Leave empty and it picks them from the title.

It draws the words as well as the picture

One press returns a finished thumbnail with the words already in it. Leave "Words on the thumbnail" empty and it picks the three or four words that carry the video from what you wrote; fill it in and it sets exactly those. Because the words are drawn by the image model rather than set in one font, it handles scripts the free maker cannot, Devanagari included.

Look at every one before you publish it

Image models get details wrong, lettering included, so nothing is used anywhere until you have seen it. Each takes about twelve seconds, and Generate another draws a new image and spends another from the allowance. A free account includes 2 in total, at most 1 a day; paid plans get a daily allowance that refills.

When the free maker is the better tool

If the exact words and the layout matter, or you expect to rewrite the headline a few times, the free thumbnail maker sets crisp type and re-renders every change for nothing. The designer is for when you would rather hand over the brief than lay the thumbnail out yourself.

Related tools

This tool also runs over MCP, so Claude, Cursor or another MCP client can use it against your own channel. See the MCP page.

Questions about this tool

Can it make the vertical cover for a Short?

Yes. Choose the Short shape before generating and it draws a 9:16 image instead of a 16:9 one. The two shapes are separate images, so a pair spends two from the allowance, and on a free account, which draws at most 1 a day, the second waits for the next day.

Does it need an account, and how many do I get?

Yes, and a free account gets 2 drawn thumbnails in total, at most 1 a day. An image costs far more to produce than a paragraph does, so the free allowance here is something to try the tool with rather than something to work from. Paid plans get a daily allowance that refills. The free thumbnail maker, which sets type rather than drawing a picture, previews without limit and downloads 2 a day with no account, 4 on a free one.

Does this decide anything about my channel?

No, and that line is deliberate. Runsheet uses a model to write copy and never to produce a finding. Every number it reports about your channel is measured, uses medians rather than means, and refuses to answer when the sample is too small. Nothing generated here touches that.

Can I run AI YouTube thumbnail designer automatically?

Yes. Every tool here is also exposed as an MCP tool, so Claude, Cursor or anything else that speaks MCP can run it against your own channel. How to connect one is on the MCP page, https://runsheet.buildifyapp.in/mcp.

Do you keep the thumbnail?

Yes, and on purpose: the picture is stored so you can attach it to a video in Runsheet later instead of drawing it again. The title and description you type are sent to Google's Gemini API to produce it.

Give the week a shape.

Free has no card and no clock, and every screen works on it.

The demo needs no email and no card. It is a sandbox of your own with a filled channel in it, and it deletes itself.