AI YouTube Thumbnail Generator

Write the video title, a short line of text and the expression, add your photo if you want to be in it, and get a 16:9 thumbnail with lettering big enough to read on a phone.

A 16:9 YouTube thumbnail for a video called "". Large, bold, easy-to-read text that says "". The person looks .

Up to three photos of you or the item to feature. PNG, JPEG or WebP up to 12 MB.

205 credits

Model: Nano Banana Pro · Google
Cost: 205 credits

Write one with the image prompt generator

A sample this tool made. Your results appear here when you press Generate.

YouTube Thumbnail Generator sample made with Nano Banana 2 — Sample made with Nano Banana 2, 105 credits

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Prompt library

Prompts with the image each one made, ready to copy.

Browse all

A square clear glass perfume bottle with amber liquid, a black cap and a cream NOIR 07 label, centred on a flat white background with a faint shadow under its base.

Nano Banana ProCut a product out onto a clean white background

The small living room widened to 16:9: the lit Christmas tree, grey sofa and patterned rug stay in place, with new bookshelves and a mantel added on the left and a radiator and framed print on the right.

nano-banana-2Extend a photo beyond its edges

The bearded man from the balcony photo as a passport-style ID photo: head and shoulders, facing the camera with a neutral expression, light blue shirt, plain white background and even light.

nano-banana-2Passport-style ID photo from a selfie

The beagle photo shown as a smartphone lock screen, with the time 9:41, a date, status icons and flashlight and camera buttons, the phone standing on a tan background.

nano-banana-2Preview a photo as your phone lock screen

The woman from the window selfie relit with one soft key light from the left: her far cheek and the wall behind her fall into soft shadow while her face, hair and white t-shirt stay the same.

nano-banana-2Relight a portrait with a classic studio lighting setup

The bearded man on his balcony reshot with a shallow depth of field: his face stays sharp while the plants, railings and apartment blocks behind him fall into a soft blur.

nano-banana-2Reshoot a phone photo with real camera settings

A crisp, clean photo of a smiling bearded man in a light blue cotton shirt taking a selfie on a city apartment balcony with potted plants and apartment blocks behind him.

Nano Banana ProSharpen a blurry or low-resolution photo

The woman from the window selfie with a soft everyday makeup look: a thin brown liner, defined brows, warm blush and a nude rose lip, with her hair, white t-shirt and room unchanged.

nano-banana-2Try a makeup look on your own photo

A 3x3 grid of the same woman in a white t-shirt on a light grey background, each tile with a different haircut: a short pixie, a chin-length bob, long layers, loose waves, a sleek ponytail, long hair with curtain bangs, a top bun, a straight shoulder-length cut and tight curls.

nano-banana-2Try nine hairstyles on your own face

The tricolour beagle turned into a soft plush toy with floppy felt ears, embroidered eyes, a dark collar and a small fabric tag, sitting on the same oak floor by the window.

nano-banana-2Turn your pet into a plush toy

What is AI YouTube Thumbnail Generator?

Thumbnails are judged at the size of a stamp, in a feed full of others. What works there is a single subject, a clear emotion and a short line of big text. Fill in the title, the words, the scene and the expression, and the model lays them out in 16:9. Add a photo of yourself or of a product and the model builds the thumbnail around it.It runs on Nano Banana Pro by default, Google's Gemini 3 Pro Image, whose strength is text inside pictures. Need help with the wording of a scene? The image prompt generator writes image prompts for free.

What people make with it

Thumbnails for YouTube videos
Covers for video podcasts
Title cards for online classes and webinar replays
Preview images for video posts on other sites

Why use YouTube Thumbnail Generator?

6 models to choose from: Starts on Nano Banana Pro by Google. Also works with GPT Image 2, Nano Banana 2, Nano Banana, FLUX.2 [flex], Seedream 4.5.
The cost is shown before you run it: 205 credits per image on Nano Banana Pro. The Generate button shows the exact credits first, so nothing is spent by surprise.
Failed generations are refunded: When a generation fails, its credits go back to your balance automatically.
One credit pool for every tool: The same credits work across every studio tool and model, and the prompt tools include free prompts every day.

How to use YouTube Thumbnail Generator

Three steps from an idea to a finished result.

11. Enter the video title, plus the short phrase to show
22. Set the scene, choose an expression, and add your photo if you want to appear in it
33. Generate several and keep the one that still reads when you shrink it down

Tips for better results

Fewer words read better. If the text wraps onto a second line, cut a word.
Type the words exactly as they should appear, capitals included.
Let the face fill a third of the frame or more. Small details vanish at feed size.
Keep important text out of the bottom-right corner, where YouTube shows the video length.
Reuse the same layout across a series so viewers recognize your videos.

Frequently asked questions

What people ask before they use YouTube Thumbnail Generator.

1Can I be in the thumbnail?

Yes. Add up to three pictures of yourself; your face is taken from them for the person on screen. Sharp, well-lit shots looking at the camera give it the most to work with.

2Will the text be spelled right?

Nano Banana Pro, the default, is built for clean text inside images, and short phrases come out most reliably. Check every letter before you upload the thumbnail, and run it again if a word is off. GPT Image 2 is a good second choice for text.

3What shape is the thumbnail?

Wide, at 16:9, the same proportions as the video player, so YouTube does not crop it.

4How much does it cost?

205 credits per image on Nano Banana Pro. Nano Banana 2 at 105 credits and Nano Banana at 60 are cheaper for drafts. The Generate button shows the credits first, and a failed run is refunded automatically.

5Can I use it on a monetized channel?

Yes, for thumbnails made on a paid plan or with credits you bought. Thumbnails made only with free credits are for personal use.

Try YouTube Thumbnail Generator now

205 credits per image on Nano Banana Pro. You see the exact credits before you generate.

Open YouTube Thumbnail Generator