YouTube Image Creator
A useful YouTube thumbnail makes the video topic recognizable at small size. CrePal's image creator can generate a visual concept, while a layout tool gives you reliable text, exact crop and final export settings. Judge the finished thumbnail beside the video title, not as a full-screen poster.
Why Thumbnails Decide the Click
Show one action, subject or result that the video actually delivers. A thumbnail can attract attention without promising a scene the viewer never sees. Keep contrast high and avoid clutter that collapses on a phone screen.
Check Thumbnail Size Before Upload
For a standard video, YouTube's custom thumbnail guide currently recommends a 3840 × 2160 pixel thumbnail at 16:9, with a minimum width of 640 pixels. Build the final canvas in a layout tool, keep faces and words inside safe margins, and check the exported file at native and small preview sizes. Shorts have a different recommended ratio. YouTube lists JPG and PNG among accepted thumbnail formats. For video thumbnails, check the upload file limit for your device: currently under 50 MB on desktop and under 2 MB on mobile.
Adding Bold Text to a Thumbnail
Generate background artwork without lettering, then set the final headline in a layout tool. Use a short phrase, clear font and sufficient contrast. Proofread every word; AI-generated text inside an image can be misspelled or malformed.
Free-Plan Limits for Thumbnail Work
CrePal's pricing page describes a limited-credit Free plan for personal evaluation and learning. Check plan terms, model access and export conditions before building a regular publishing workflow. A reusable visual brief can reduce unnecessary generations, but each video needs its own truthful hook.
Testing a Few Variations Before You Publish
Try a close-up, a wider context view and a simple before/after concept, keeping the title and topic consistent. Compare them at feed size and select the version that communicates fastest. After publishing, use YouTube's own available thumbnail testing and analytics where eligible.
Example prompt
Create background art for a YouTube cooking thumbnail: one vivid bowl of spicy noodles, three-quarter angle, dark simple background, strong warm rim light, clear empty space on the left for headline text, no words or logos.
Worked example: a cooking-video thumbnail
For a video that really teaches one spicy noodle recipe, generate three background concepts: a tight bowl close-up, a hand lifting noodles and a wider table scene. Keep the dish recognizable in every version. Put the same short, truthful headline over each in a layout tool and compare them next to the final video title at phone-feed size. The close-up may win because the food reads immediately; the wider shot may work if it adds a useful action. Reject any generated garnish or ingredient that the recipe does not contain. Set the final canvas and export in the layout tool, then preview the actual upload in YouTube Studio.
Thumbnail decision checklist
- Does the image promise something the video actually shows?
- Can the dish and headline be understood at a small preview size?
- Are exact words, logos and faces clear of crop edges and interface overlays?
- Have the exported dimensions, format and upload eligibility been checked in the destination?
Next step
Generate thumbnail art in CrePal's image creator, then set exact text and a 16:9 standard-video canvas in a layout tool and verify the file in YouTube Studio.
Frequently Asked Questions
For a standard video, YouTube currently recommends 3840 × 2160 pixels at 16:9, with at least 640 pixels of width. Set that canvas in a layout tool, then verify the exported file and upload eligibility in YouTube Studio.
Add exact words in a layout tool after generating the art so spelling, font and placement remain under your control. Keep the phrase short enough to read on a phone and check that it does not repeat the entire video title or cover the main subject.
A limited-credit Free plan exists for personal evaluation and learning. Check current terms before planning regular channel production. Save approved artwork and prompt briefs so a publishing schedule is not based on an assumed daily reset or unlimited generations.
Usually a shorter phrase works better at thumbnail size. Keep it accurate and complementary to the video title, then test legibility on a phone. Put the exact phrase into the final layout rather than asking image generation to draw every letter.
Compare the same video title and headline over each candidate at feed size. Look for a clear subject and honest promise, then use eligible YouTube testing or later analytics to learn from the published result. Do not select only by full-screen visual polish.