THUMBFORGE

AI thumbnail maker
for YouTube creators

Create custom covers with ThumbForge’s YouTube thumbnail maker. Turn your video idea and headline into a 16:9 image, choose your style, and review the result before posting.

Open YouTube thumbnail maker Read the guides

1 free thumbnail per account, once · email and signup required · no card needed

FROM IDEA TO COVER

AI thumbnail maker examples

Illustrative examples. Recreate a direction with your own subject and headline; results will vary.

How to use the
YouTube thumbnail maker

For standard horizontal videos, ThumbForge’s YouTube preset uses a 16:9 composition at 1536 × 864 pixels. Vertical Shorts and TikTok covers need a different format and publishing workflow.

Add the exact headline you want and choose a style such as Bold Creator, Cinematic, or Clean Minimal. Use the concept assistant to refine your brief or work from a reference you have permission to use.

YouTube format and upload guide

01
Describe the video
Name one main subject, what the video shows, and a short, accurate headline.
02
Choose format and style
Select YouTube for a horizontal cover. Develop your concept before generating the finished image.
03
Review and download
Check spelling, faces, and product details. Look at the cover small before downloading your chosen version.

BEFORE YOU PUBLISH

Clear beats crowded

Keep one recognizable subject and a short headline.
Check that the image accurately represents your video.
Inspect AI-generated text and details for mistakes.
Confirm YouTube’s current upload requirements before posting.

No thumbnail tool guarantees views or clicks.

YouTube’s official thumbnail guidance

Try your first thumbnail free

Your first 1 thumbnail is free with your email and signup, once per account. After that, choose $5 once for 5 creations without a subscription, or $10/month for up to 100 thumbnails per month. Each generated thumbnail uses one creation.

THE CREATOR’S NOTEBOOK