
Describe the scene, subject, and mood for your video cover, choose the settings, then generate and review a thumbnail that works at small sizes.
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An AI generated thumbnail maker creates custom video cover images from text descriptions. You describe the main subject, setting, mood, and any text space you need, then the tool generates a thumbnail image optimized for small sizes. It helps you produce video covers, channel art, or post previews without starting from scratch in design software.
Input
a bold close-up of a retro game controller on a bright orange background with dramatic lighting and space for a title
Expected output
a high-contrast thumbnail-style image with the controller as the main subject, dramatic shadows creating depth, and a clean area at the top or bottom for text overlay
Input
a steaming bowl of ramen with chopsticks lifting noodles, warm kitchen lighting, shallow depth of field
Expected output
an appetizing close-up food scene with strong color saturation, the noodles lifted and steam visible, and soft background blur to focus attention on the subject
Input
two studio microphones facing each other on a dark desk with a soft gradient background and warm rim light
Expected output
a moody podcast-style image with clear separation between the microphones in the foreground and the gradient background, rim lighting adding dimension to the scene
Type what the thumbnail should show instead of starting from a blank design, then review what the generator returns.
Repeat the same style cues across prompts so covers for a channel or series stay visually connected.
A short prompt and a couple of settings are enough to produce a starting cover you can refine.
Describe the desired image.
Choose the available generation settings.
Generate, review, and download a suitable result.
A clear description helps the generator produce a cover that reads well at small sizes.
Copy a structure, then adjust the subject, lighting, camera, and output details for your own result.
a sleek smartphone angled on a dark reflective surface, dramatic side lighting, neon blue accent light, clean space at top for video title
Focuses on one clear product, uses dramatic lighting for depth, includes accent color for visual interest, and reserves space for text.
a close-up of athletic sneakers on a gym floor, dynamic low-angle shot, bright motivational lighting, bold orange and black palette
Uses a low angle for energy, focuses on a recognizable fitness element, and chooses bold colors that pop at small sizes.
a backpack and camera resting on a mountain overlook, golden hour lighting, expansive valley in the background, warm inviting tones
Combines adventure props with scenic backdrop, uses golden hour for warmth, and creates a sense of journey and destination.
hands holding a smartphone with screen visible, overhead flat lay, bright even lighting, clean white background, space for text on left
Uses flat lay composition for clarity, focuses on the action, provides high contrast with a white background, and leaves text space.
a close-up of hands on a piano keyboard, stage lighting with purple and blue gels, shallow depth of field, dramatic concert mood
Captures the essence of performance with a focused detail, uses stage lighting for mood, and shallow depth to create intimacy.
a stylized cartoon character with exaggerated expression, bright colorful background with geometric shapes, playful energetic feel
Uses character as the focal point, bright colors and shapes for visual energy, and a style that works well at thumbnail scale.
Match the workflow to the input you have and the result you need before opening the generator.
Input: Bold subject, high contrast, strong focal point, text space reserved, 16:9 aspect ratio cue
Result: Eye-catching thumbnail optimized for YouTube feed and search results
Tool: Text to Image with high saturation and dramatic lighting
Input: Clear subject, bold colors, vertical or square format cue, minimal background clutter
Result: Attention-grabbing preview suitable for Instagram, TikTok, or Facebook video posts
Tool: Text to Image with bold colors and clean composition
Input: Thematic subject, moody lighting, square format, consistent style across episodes
Result: Episode card suitable for podcast platforms and social sharing
Tool: Text to Image with moody or atmospheric style
Input: Clear instructional subject, bright even lighting, space for lesson title, professional look
Result: Lesson thumbnail suitable for online courses or tutorial platforms
Tool: Text to Image with clean, professional style
Input: Energetic subject, bold colors, text space for event title and time, high contrast
Result: Stream cover suitable for Twitch, YouTube Live, or event promotion
Tool: Text to Image with high energy and bold graphics
Power up your creative workflow with our AI-driven tools. Generate stunning videos, create images, and apply custom adjustments - our AI Video Generator and AI Image Generator offer a complete solution for all your creative needs.
Choose the credit package that works best for you.
No hidden fees • Cancel anytime • Unused credits roll over
Perfect for trying out AI creation.
Credits
200 credits / month
Billed monthly
First-time subscribers get 30% off their first month, then standard price
What's included
Perfect for light creators.
Credits
500 credits / month
Billed monthly
First-time subscribers get 30% off their first month, then standard price
What's included
Best value for creators
Credits
1,200 credits / month
Billed monthly
What's included
For video creators and power users.
Credits
5,000 credits / month
Billed monthly
What's included
Standard models only — upgrade to unlock premium models.
Credits
10 free credits on signup
Questions? Contact us at support@domer.io
Open the text-to-image tool, describe the cover you need, and generate an image to review and download.