YouTube covers
A dramatic scene with space for a short title and a recognizable subject.
Cover image
AI thumbnail generator for video covers
A thumbnail is a composition problem before it is a design problem. You need one readable subject, strong contrast at small size, and deliberate empty space for a title. Generate the scene here, then add text in your own editor.
What makes a thumbnail work at small size?
One subject, a simple silhouette, high contrast, and a readable color palette. Leave a quiet area for the title and avoid fine detail that disappears in a feed. The image should still make sense when it is only 120 pixels wide.
How to generate a thumbnail
- 1
Decide the subject and the empty side
Say where the person or object should sit and which side stays empty for text. This is the composition instruction the model needs.
- 2
Choose a strong contrast
A dark subject on a bright background or a warm subject on a cool one reads better in a crowded feed than a low-contrast scene.
- 3
Add text outside the generator
Generate the scene without text, then add the title in an editor. AI-generated lettering is unreliable and often misspelled.
Try it in the live workspace
The page opens with the matching mode selected. Upload a file, edit the prompt, and sign in when you are ready to spend credits.
AI thumbnail generator for video covers
Veo3.1 + Nano Banana Studio
106 / 2000
500 credits · about 5 image edits · one-time
Cost 100 creditsRemaining 0 credits
Preview
Nothing generated yet
Upload only images you have the rights to use. Files are sent to the storage and model providers needed to produce the result.
Thumbnail prompt recipes
Name the subject position, the empty side, the contrast, and the mood. Do not ask the model to write the title.
Surprised host
Tech review
Travel vlog
Thumbnail jobs
Course and webinar covers
A clean, professional image that leaves room for a topic label.
Podcast and interview clips
A strong portrait or object with negative space for episode text.
Product demo covers
A hero shot of the product with a controlled background and a clear focal point.
Do not let the model write the title
Image models still misspell short words and mangle logos. Generate a clean plate, add typography yourself, and keep the text legible at mobile size. Avoid fake UI, fake headlines, and anything that misrepresents the video.
Thumbnail generator questions
Can the model add the title text?
It can try, but the spelling is unreliable. Generate the image without text and add the title in a design tool for a professional result.
What aspect ratio should I use?
Use the ratio required by the platform. For YouTube thumbnails, 16:9 is the standard; for Shorts and Reels, use a vertical ratio.
Can I use a real person's face?
Only with that person's consent and the rights to their image. Do not generate a recognizable public figure for an endorsement you do not have.
Will the thumbnail match my video?
It should represent the content honestly. A dramatic image that does not match the video increases early clicks but hurts trust and retention.
Can I make a set for a channel?
Yes. Reuse the same composition rule and color palette across episodes so the channel looks consistent.
Does a thumbnail generation cost credits?
Yes, each image generation consumes credits. The pricing page lists the current packs and plans.
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