ImageSmith / Prompt generator
AI image prompt generator
Get from a vague idea to a prompt that works first time. Build one instantly from options, or let the AI write three detailed variations.
Quick builder
Photograph of a cozy independent bookshop window, eye-level medium shot, golden hour, warm and inviting mood, high detail, cohesive color palette
AI prompt expander
Anatomy of a good prompt
Toggle the parts on and off to see how much each one contributes. Most disappointing AI images are missing composition or light.
Assembled prompt · 5/7 parts
a handmade ceramic mug, on a weathered oak table beside a window, close-up, three-quarter view, mug on the left third, empty space on the right for text, soft morning window light, gentle long shadow, natural editorial product photography, shallow depth of field
- Subject. Without a specific subject, the model picks the most average version of the idea.
- Setting. Settings give context and stop the "floating object on grey" look.
- Composition. Composition is decided in the first denoising steps, so it has to be in the prompt, not fixed later.
- Light. Light sets mood more than anything else. Unspecified light tends to come out flat and even.
- Style. The medium (photo, 3D, watercolor, vector) changes everything; say it explicitly.
- Palette. Naming 2–3 colors keeps images on-brand across a series.
- Text. Quote exact words and keep them short; long text is where models still slip.
AI image prompt examples
Twelve prompts that work well, grouped by what small businesses make most. Copy one, or send it straight to the generator.
Product photo
Studio product photo of a frosted glass perfume bottle on a wet black slate, single hard spotlight from above, droplets on the glass, deep shadows, luxury mood
Food
Overhead photo of a bowl of ramen on a dark wooden table, steam rising, chopsticks resting on the rim, warm tungsten light, moody restaurant atmosphere
Website hero
Wide photo of a sunlit co-working space with plants and wooden desks, two people collaborating out of focus, bright airy tones, large empty wall on the left for a headline
Logo
Minimal flat vector logo of a fox head made from three geometric shapes, burnt orange on white, no text, no gradients
Poster
Retro screen-printed poster for a summer jazz night, a saxophone silhouette against a big setting sun, the text "JAZZ ON THE ROOF, JULY 12" in bold condensed type, three colors: teal, mustard, cream
Social post
Bright flat-lay of a planner, coffee and a phone on a pastel pink desk, top-down, soft shadows, lots of empty space at the top for a caption
Illustration
Cozy isometric illustration of a tiny bookshop on a street corner at dusk, warm lights in the windows, a cat on the step, soft pastel palette
Icon
App icon of a paper airplane on a rounded square, bold simple shape, white on a vivid blue gradient background, soft inner shadow
Real estate
Bright wide-angle interior photo of a modern Scandinavian living room, white walls, light oak floor, grey sofa, large window with a garden view, midday natural light
Thumbnail
YouTube thumbnail: surprised person pointing at a giant glowing laptop screen, high contrast, saturated colors, bold outline around the person, clean blue background, space on the right for big text
Pattern
Seamless repeating pattern of hand-painted lemons and leaves on a cream background, gouache texture, Mediterranean feel
Headshot
Professional headshot of a middle-aged man in a charcoal suit, friendly smile, soft studio lighting, plain light grey background, shallow depth of field
Questions people ask
What does the AI prompt generator do?
You type a rough idea, like "poster for my bakery's grand opening". An AI writer (GPT-6 Luna through Vercel AI Gateway) returns three detailed, different prompts covering subject, setting, composition, light, style and color, ready to paste into any image generator.
Do these prompts work in Midjourney, DALL·E, Stable Diffusion and others?
Yes. They are written in plain descriptive language, which every modern model understands. For Midjourney you can add parameters such as --ar 16:9 at the end; for Stable Diffusion you can move unwanted elements into the negative prompt.
Is there a free image prompt generator without AI?
Yes: the builder at the top works instantly with no AI call. Choose options and it assembles a structured prompt you can copy. The AI expander is there when you want more creative variations.
How long should an image prompt be?
Usually 25–70 words. Short prompts leave too much to chance; very long ones make models ignore parts. Put the most important things first: subject, then composition, then style.
Can I turn an image into a prompt?
Not with this tool. It writes prompts from text ideas. Describing an image you like in the builder (subject, light, style) usually gets closer than automatic "image to prompt" captions anyway.