Generate YouTube thumbnails with AI from your video, YouTube URL, or an idea. ThumbnailPeak analyzes your content and creates click-worthy thumbnail concepts designed to stand out in the YouTube feed.
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Reference images (optional)
Give the AI a look to match, an object to include, a face to keep recognizable — or any mix. None is copied: a template lends only the properties you check, a component lends only its main foreground subject, and a face lends only who the person is, never their pose or expression.
Style template
A thumbnail whose look you want matched.
Component
Its main foreground subject gets placed in the thumbnail.
Face
A person from your library, kept recognizable.
Properties to borrow from the template
Stills from your video (optional)
Sign in to add stills from your video.
What it made from real YouTube videos
Three Creative Commons videos from maker channels. Generate was given each link and nothing else; every thumbnail is shown unedited, next to the one the video has now.
Only the description names the engine, a 1940s flathead V8, and that became concept 1's headline. Concept 2 sells it as the creator's first go at electrolysis; concept 3 puts the whole video in one frame, one end rusted and the other clean.
A strong product shot to begin with, so concept 1 keeps the lathe front and center and names the project, a name it found in the description's parts link. Concepts 2 and 3 answer what every viewer wonders about a printed lathe: does it cut real metal?
Rust to finished was already this creator's idea, and Generate landed on it as well. The engine and the two-seat build come from the description. Concept 3 is the weakest here: it promises two seats and shows one — so check each concept against your video before you use it.
No video yet? Start from a description
For a video that isn't online yet, switch the form to Describe your video and write what happens, what's on screen and the payoff. These three came from four sentences about a camera comparison that was never filmed: two cameras tested side by side, and one handed to the creator's brother at the end. Each concept bets on a different line.
The ending
“I end by handing one to my brother: the one I'm not keeping.”
Where the Sony wins
“The Sony wins autofocus and battery…”
Where the Canon wins
“…the Canon wins colour straight out of camera and price.”
Sign in, add up to six photos of yourself to the face library (an account holds up to three people), and pick yourself in the Face slot on the form. The photos say who you are; the video decides what you're doing in each shot. Soaked on a cliff, skeptical of a pan: neither is in the photos these runs used, and the face stays the same person from one video to the next.
Van build
Travel
Kitchen gadget ranking
The presenter is a stand-in made for these examples, not a real person.
Keep your channel's look
Attach a style template, a thumbnail whose look you want, and tick what to borrow from it: layout, color grade, text style, lighting. Generate takes the look and never the template's words or subjects; what's in the picture still comes from your video. This template was made up for these examples, and two of the described videos were run again with it attached.
The style template
Default
With the template
Same videos, same ideas. Only the look moved — a serif headline, a terracotta accent, quieter color — and all of it came from the template.
Every generated thumbnail on this page was made by ThumbnailPeak's AI thumbnail generator on 26 and 27 September 2026 and is shown unedited. The described videos were never filmed, the presenter and the bakery template were made up for these examples, and ThumbnailPeak is not affiliated with Sony or Canon.
Paste the video's YouTube link — or describe the video instead. Unlisted is fine, and with a link the AI works from the video itself: its title, its description and frames from the footage. Add your own stills, or pick your video file and your browser takes them. Not uploaded anywhere yet? Describe the video in a few sentences and the thumbnail can be ready before there is anything to link to.
Steer it, if you want to. Add a line of guidance (“make it look like a heist thriller”), a style template whose look you want matched, or a component — a product shot, a logo — whose main subject gets placed in the thumbnail. All of it is optional.
Choose one concept or three. Three concepts share one read of the video, so they cost 6 credits rather than 9, and each is built on a different idea instead of three takes on the same one.
Download the 1280×720 thumbnail — or test it first. Get a 0–100 score and specific fixes from the AI critique, compare it against your current thumbnail, or preview it in a real YouTube feed next to the videos it will compete with.
How is this different from other AI thumbnail generators?
Most AI thumbnail generators start from a text prompt and give you a picture of what you described, which leaves the hard part — deciding what the thumbnail should be — to you. ThumbnailPeak's AI thumbnail generator starts from the video.
Built from your actual footage. The AI reads your title and description and studies frames from the video — your own stills, or the ones YouTube saves — so the thumbnail is built on what the video really shows. When a person from the video is in the shot, a likeness check compares their face with the frame it came from and flags a mismatch on the result.
Three concepts that genuinely differ. Every concept starts from a reason to click — a surprising result, a comparison, a transformation, a stake — and then picks the layout that shows it: a subject beside an oversized object, a reaction next to the thing being reacted to, a magnified detail, a versus split, a before-and-after. A batch of three aims for three different reasons to click, not three crops of one. A layout is only used when the video actually shows every piece it needs, so nothing is invented to fill a slot.
Text only where it earns the click. Words go on the thumbnail when the promise is verbal — a number, a claim, a stake — and stay off when a frame already says it. When there is text, it is four words or fewer and never repeats your title, which sits right beside it.
Scored at the size viewers see. Each thumbnail is scored 0–100 by the same AI critique you can run on any thumbnail, at full size and at 168×94, the size YouTube shows in the suggested sidebar. Nothing is fixed automatically: Improve this one takes a concept to AI Improve on its critique, and Edit this one to AI Edit, each at its own price in credits.
Your style, borrowed rather than copied. A style template lends only the properties you tick — layout, color grade, text style, lighting — never its subjects or its words.
Make a thumbnail from your video
A thumbnail made from the video shows what is really in it. There are two ways to give the AI thumbnail generator your footage, and you can use both on one thumbnail.
From a YouTube link. Paste the link, public or unlisted. The AI reads the title, the whole description and the frames YouTube saves for the video.
From the video file. Pick the file and your browser takes up to nine stills from across the video, skipping black frames and repeats. Scrub to a moment and add that exact frame if you want it. Only the stills are uploaded: the video never leaves your device, so this works before the video is on YouTube at all.
Your own stills come first, and the frames YouTube saves fill what room is left. No footage yet? Describe the video in a few sentences and the thumbnail is made from your words.
What it costs
The AI thumbnail maker runs on credits. One concept uses 3 credits and a batch of three uses 6. A free account comes with 12 credits, and Pro adds 300 every month. When you have enough credits for one concept but not three, it makes one. Free downloads carry a small ThumbnailPeak mark in the corner. Get clean downloads with Pro or a credit pack.
AI thumbnail generator: questions people ask
Is the AI thumbnail generator free?
It is free to try. A free account comes with 12 credits, once. One thumbnail uses 3 credits and a batch of three uses 6, so the free credits make 4 single thumbnails or 2 batches of three. After that, 100 credits cost $10 and never expire, or Pro is $20/month for 300 credits a month.
Does it put a watermark on the thumbnail?
On a free account, a downloaded thumbnail carries a small ThumbnailPeak mark in the bottom-left corner, at the full 1280×720 size. Get clean downloads with Pro or a credit pack. A clean download has no mark of any kind.
Do I need to sign up?
Yes. Making a thumbnail needs a free account, which you create by signing in with Google. No card is asked for. You can read this page, look at the examples and use the free feed preview without one. Preview a thumbnail without an account.
Can it make a thumbnail from my video?
Yes, two ways. Paste the video's YouTube link and the AI reads its title, description and the frames YouTube saves. Or pick the video file: your browser takes up to nine stills from across the video and only those stills are uploaded, so the video itself never leaves your device. You can do both, and your own stills come first.
Can it make a thumbnail from just a title or an idea?
Yes. Choose to describe the video instead of pasting a link, write a few sentences about what happens in it, and add a working title if you have one. This is for a video that is not uploaded anywhere yet. Stills from the video file can be added here too.
How is it different from making a thumbnail in ChatGPT?
A chat assistant draws what your prompt describes, so you decide what the thumbnail should show and write it out. This tool starts from the video and plans the idea for you. It also always makes a 1280×720 image, YouTube's own shape, and scores it. When we tested ChatGPT's image model, every image came back 1536×1024, which YouTube shows with black bars at the sides. Our ChatGPT thumbnail test.
Are AI thumbnails allowed on YouTube?
Yes. YouTube's help page lists using AI to make a thumbnail as production help that needs no disclosure. An AI thumbnail still has to follow every rule a photo does: nothing misleading, nothing sexual or gory, and no fake version of a real person. The rules in full.
