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搭配 AI 模板的 YouTube 缩略图生成器

通过视频创意、参考照片或现成提示词模板制作 YouTube 缩略图。选择风格,定制创意说明,在 UGC Maker AI 上生成宽幅封面。

探索 YouTube 缩略图示例

查看完整缩略图设计,以及参考图和最终效果的对照。

生活方式与产品评测缩略图

周日焕新
周日焕新 (提示词)

Finished lifestyle vlog YouTube thumbnail. In a bright, tasteful apartment, a non-identifiable adult kneels beside a low coffee table and arranges fresh flowers, a journal, folded linen, and a small candle into a woven tray. Keep the person in the lower-right two-thirds and make the action immediately readable. Cream, terracotta, and sunlit wood palette; soft natural morning shadows; polished creator photography. Render the exact text "SUNDAY" in enormous warm-white high-contrast serif capitals across the upper-left, and "reset" directly beneath it in oversized flowing handwritten terracotta script; add one thin terracotta underline under "reset". Keep the text crisp, legible, and clear of the face. No logo, watermark, extra copy, app UI, or brand identifiers. 16:9 landscape.

值得入手吗?
值得入手吗? (提示词)

Finished product-review YouTube thumbnail. A non-identifiable adult creator in a clean home test studio holds an unbranded compact portable espresso maker close to the camera while inspecting it with an intrigued, slightly skeptical expression. The product is oversized and sharply readable in the foreground; a simple cup and coffee beans sit on the workbench. Bright aqua backdrop, warm key light on the face, high-contrast commercial photography. On the left, add a large rounded white review card with one gold filled star and four pale-gray stars at the top. Render the exact text "WORTH" in huge black sans-serif capitals and "IT?" directly below in huge black sans-serif capitals. Add a restrained yellow offset shadow behind the card. Keep the text sharp and readable. No logo, watermark, extra copy, app UI, or brand identifiers. 16:9 landscape.

美食评测缩略图

参考图片
参考图片 (提示词)

A non-identifiable adult food creator stands at a small outdoor cafe table and closely inspects one raised slice of cheese pizza, turning it toward daylight with a doubtful but subtle expression. A simple unbranded plate and napkin sit below, with a softly blurred blue-sky city terrace behind. Fresh natural food detail, realistic hand anatomy, close wide-angle editorial framing with the pizza and face both prominent. No text, restaurant signs, logos, review stars, cards, arrows, watermark, or collage. 16:9 landscape.

完成的缩略图
完成的缩略图 (提示词)

Use the supplied base image. Keep the same person, face, raised pizza slice, hand position, cafe table, sky terrace, camera angle, and daylight direction unchanged. Make the pizza surface show a few believable but subtle greenish suspicious spots, and make the subject's concerned expression slightly stronger. Add a large rounded off-white review card in the upper-left sky area without covering the face or pizza. Show one filled yellow star and four pale-gray stars at the top of the card. Render the exact title "MOLDY" on the first line and "& GREEN" on the second line in extremely large black clean sans-serif type. Keep the text crisp and legible at thumbnail size. No restaurant branding, logos, watermarks, extra people, or collage frames. 16:9 landscape.

播客缩略图

参考图片
参考图片 (提示词)

A non-identifiable adult podcast host sits at a wooden desk in a warmly lit recording studio, leaning naturally toward a large studio microphone while speaking and listening through over-ear headphones. A glass of water, notebook, and softly glowing practical lamp create believable depth; the host has an engaged, thoughtful expression. Cinematic editorial portrait, medium close-up with clean negative space on the left. No text, logos, guest portrait, title block, cards, arrows, watermark, or collage. 16:9 landscape.

完成的缩略图
完成的缩略图 (提示词)

Use the supplied base image. Keep the same host, face, hairstyle, headphones, microphone, desk, notebook, pose, camera crop, and warm studio lighting unchanged. Deepen the left background into a refined dark navy panel with a narrow teal outer border, while retaining the host and microphone unobstructed on the right. Render the exact text "FINDING" on line one in tall warm-white condensed capitals, "CALM" on line two in tall vivid-teal condensed capitals, and "IN CHAOS" on line three in tall warm-white condensed capitals. Add a thin turquoise divider line under the headline and render "THE LATE NIGHT PODCAST" below it in small warm-white condensed capitals. Keep the typography crisp, left aligned, and readable at thumbnail size. Do not add logos, watermarks, other people, celebrity likenesses, or collage frames. 16:9 landscape.

将视频创意转为缩略图

生成前确定主体、构图与视觉风格。

可定制的模板

选择产品评测、教程、对比或生活方式预设,再编辑提示词,使其贴合视频内容。

参考图像指导

使用支持参考图的图像模型,上传出镜人物照片、产品图片或其他视觉参考。

宽幅缩略图构图

从 16:9 布局开始,描述视觉焦点、背景和标题预留空间。

集中查看图像历史

在账号历史中查看生成的图片,下载适合本次上传的版本。

适合频道的缩略图创意

围绕视频的实际主题确立视觉方向。

产品评测

让主打产品与出镜人物处于中心,构图清晰且富有表现力。

教程与知识讲解

突出结果、关键物品或视觉对比,帮助观众理解课程内容。

对比与变化展示

保持主体一致,制作前后对比布局或并排展示创意。

旅行与生活方式视频

将易于辨识的人物、地点或瞬间,与服务于故事的简洁背景结合。

如何生成 YouTube 缩略图

选择起始风格,添加个人细节并检查结果。

选择模板

选择缩略图预设填入提示词,或从零写下自己的创意。

定制创意说明

替换主体细节,明确需要的标题文字,并按需上传参考图。制作宽幅缩略图时保持选择 16:9。

生成并下载

生成图片,检查人脸与文字,再从图像历史中下载满意的结果。

Manual guide

探索更多 AI 创作工具

用 UGC Maker AI 上的图像与视频工具,构思下一次视觉创意。

YouTube 缩略图生成器常见问题

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