Thumbnail Maker
Thumbnails built to be clicked. Pick a style, choose a model, and download the result at full resolution with no watermark.
Pick a style on the left, then hit Apply. Your original stays untouched — you always see both.
How to use Thumbnail Maker
Upload your image
JPG, PNG or WEBP. If the asset is going to be cropped several ways, start from the widest, highest-resolution version you have.
Choose the platform and shape
Square, portrait, wide, circle-safe, bold or minimal. The choice sets the ratio and where the subject sits inside it.
Download and post
Correct dimensions, full resolution, no watermark. It uploads without the platform re-cropping it for you.
See it in action — real before & after
Why use Thumbnail Maker
What Thumbnail Maker does
Thumbnails built to be clicked.
Safe areas respected
Cover images have a profile photo over one corner and buttons over another. The subject is placed clear of both.
Legible at thumbnail size
Most feed images are first seen very small. High contrast and a simple focal point are what survive that.
Room left for text
Deliberate empty space where a headline or caption goes, rather than a full-bleed image with nowhere to put type.
Consistent across a profile
Avatar, banner and post images that read as one identity instead of three unrelated pictures.
One source, every shape
Generate square, portrait, wide and circular versions from a single upload.
What Thumbnail Maker changes
Turn this into a high-impact video thumbnail: an exaggerated clear expression, strong subject separation from the background, saturated high-contrast colour, and clear space left for large title text.
Your face, bone structure and skin tone are held fixed on every generation — only what is described above is changed. Add your own brief in the Custom tab to take it further.
Thumbnail Maker for every slot a profile has
A profile is a set of images with different jobs. Each one is cropped, masked and overlaid differently.
Profile pictures and avatars
Circle-safe, legible at 40 pixels, recognisable as the same person or brand across platforms.
Banners and cover images
Wide, composed around the elements the platform lays over them.
Feed posts
Square and 4:5, which is the ratio that occupies the most vertical space in most feeds.
Stories and reels covers
9:16 with the top and bottom left clear of interface chrome.
Key highlights of Thumbnail Maker
Benefits
Fast enough to keep up
Social content is time-sensitive; this is minutes, not an afternoon.
No watermark
Nothing overlaid, at full resolution.
Credits never expire
One purchase, used whenever the next post needs an image.
Nothing to install
It runs in the browser on a phone or a laptop. No desktop app, no plugin, no account needed to look around.
No subscription
Credits are a one-time purchase, they never expire, and nothing renews on its own. Buy once and use them whenever.
What people use it for
What it is mainly used for
Thumbnails built to be clicked. Pick a style, choose a model, and download the result at full resolution with no watermark.
Link preview cards
The image that shows up when a page is shared, which is often the first thing anyone sees of a site.
Ad creative variants
Several ratios and crops of one concept, for testing across placements.
Team and community profiles
Consistent avatars across a group, which makes a community look organised.
Seasonal profile refreshes
A quick restyle for a campaign or a holiday, without redesigning anything.
Prompt ideas
Say where the subject should sit and where the text is going. Social composition is mostly about reserving space, and a prompt that does not mention the text is the reason the headline ends up over someone's face.
Avoid generated text
Ask for space for text rather than for text itself — generated lettering is still unreliable, and real type will always look better.
Be concrete, not complimentary
"Soft light from the left, plain grey background" gives the model something to act on. "Beautiful, high quality, 8k" gives it nothing at all.
Change one thing at a time
If a result is close, edit a single detail and run it again. Rewriting the whole prompt gives you an unrelated image and no information about what the change did.
Say what must not change
A short exclusion — "do not change the face", "keep the label text" — is often more effective than any amount of positive description.
Keep it short
Three or four specific clauses beat a paragraph. Long prompts dilute every instruction in them, including the one you cared about.
Name the framing
Close-up, head and shoulders, full body, centred, offset. Framing decides what the image is actually of.
More about Thumbnail Maker
Upload, pick the platform and the shape, and download. Each generation costs 2 credits from a one-time pack, so producing the same asset in four ratios is a few cents rather than an afternoon in a design tool.
Every platform crops differently, and each one crops in a way that is easy to forget until it has already happened. A rectangular avatar masked into a circle loses the top of someone's head. A cover photo has a profile picture sitting over one corner. Thumbnail Maker composes for the shape the image will actually appear in.
The size that matters is the smallest one. Most feed images are seen first at a couple of hundred pixels, and many at forty. Anything depending on fine detail or low contrast simply disappears at that scale, which is why the strongest social images are almost always the simplest.
Getting the best result from Thumbnail Maker
- Start from the largest, least compressed original you have — a screenshot of a photo has already lost detail that cannot be recovered.
- Soft, even light in the source photo gives the best result almost regardless of what you are generating.
- Judge every result at full size, not zoomed out. Problems hide at small sizes.
- Generate two or three times before deciding. Results vary between runs, and the first is not reliably the best.
- Check hands, text, jewellery and glasses in any result before sharing it — those are still where image models most often slip.
- Choose the aspect ratio before generating rather than cropping afterwards.
- If one model ignores part of your instruction, switch to the other and run it again.
- Keep the original file. It is a better base for the next attempt than a generated image is.
It's free to try and runs online — nothing to install. Explore the rest of our AI Creative Apps, or open the full AI photo editor for more control.
