Free Online Tool
Instantly create detailed prompts for Midjourney, DALL·E 3, and Stable Diffusion. Pick a subject, art style, mood, and platform — your optimised prompt is ready in seconds.
An AI image prompt generator is a tool that helps you write the text instructions — called prompts — that guide AI image models like Midjourney, DALL·E, and Stable Diffusion to produce exactly the picture you have in mind. Instead of staring at a blank text box and guessing which words will work, you describe your idea at a high level and the generator assembles a precise, richly detailed prompt for you.
Modern AI image models are extraordinarily powerful, but they are also extremely sensitive to wording. The difference between a vague prompt like "a city at night" and a crafted one like "a neon-lit cyberpunk metropolis, aerial view, golden hour glow, cinematic wide angle, ultra-detailed, 8K, ray tracing, by Syd Mead" is the difference between a generic skyline and a stunning, publication-ready illustration. This tool bridges that gap — even if you have never written a single AI prompt before.
Our AI prompt generator for images is free, runs entirely in your browser, and is optimised for the three major platforms artists and designers use most in 2025: Midjourney v6, DALL·E 3 (via ChatGPT and the API), and Stable Diffusion XL.
Type what you want to see — a character, a landscape, an object, an abstract concept — or choose one of the quick-start examples.
Select from Photorealistic, Digital Art, Oil Painting, Watercolour, Anime, 3D Render, Pixel Art, or Sketch.
Layer on lighting effects, camera angles, quality tags, mood, artist references, time of day, and a negative prompt.
Choose Midjourney, DALL·E, Stable Diffusion, or Generic — the output format and syntax are automatically adjusted.
Click Copy Prompt, paste it directly into your chosen AI image tool, and watch your idea come to life.
The whole process takes under 60 seconds. No sign-up, no credits, no limit on how many prompts you generate.
--ar
--style
--no
(tag:1.2)
Our generator automatically applies the right syntax when you select a platform — you never have to remember the rules.
Understanding what goes into a high-quality prompt helps you get the most out of any AI image tool. Every excellent prompt tends to include at least five layers:
The main subject of the image. Be as specific as possible. Instead of "a woman", try "a young botanist in a greenhouse surrounded by tropical ferns". Details like age, clothing, expression, and setting dramatically improve results.
The visual language of the image. Keywords like photorealistic, oil painting, anime, watercolour, and 3D render define the overall aesthetic. You can even reference specific art movements: Art Nouveau, Bauhaus, Impressionist.
Lighting is one of the most powerful — and most often skipped — layers. Terms like golden hour, soft diffused light, dramatic Rembrandt lighting, neon glow, or overcast natural light fundamentally change the mood of an image.
Camera angle and composition shape how viewers experience the scene. Use terms like close-up portrait, bird's eye view, cinematic wide angle, bokeh background, rule of thirds, or Dutch angle.
Technical quality signals tell the model to produce its best output. Popular ones include ultra-detailed, 8K resolution, sharp focus, ray tracing, HDR, award-winning photography, and trending on ArtStation.
Below are ready-to-use prompts generated by this tool. Copy any of them directly into your preferred AI image generator.
"a senior female scientist in a futuristic laboratory, examining glowing blue data crystals, dramatic side lighting, sharp focus, ultra-detailed, cinematic composition, 8K, ray tracing, hyperrealistic --ar 16:9 --style raw --q 2"
"a young samurai standing on a misty mountain peak at sunrise, anime style, Studio Ghibli inspired, soft pastel palette, cherry blossoms falling, wide angle, ultra-detailed, ethereal atmosphere --ar 4:3 --style anime"
"A sweeping oil painting of a Victorian-era harbour at dusk, tall ships with billowing sails, warm amber and burnt-sienna tones, impasto brushwork, inspired by J.M.W. Turner, award-winning fine art"
"(3D render:1.3), (isometric view:1.2), a cozy coffee shop interior, warm Edison bulbs, exposed brick, plants on shelves, (ultra detailed:1.4), (octane render:1.3), (8K:1.2), (sharp focus:1.3) negative: blurry, low quality, flat, 2D, sketch"
"A red fox" produces generic results. "A red fox kit peering through autumn leaves, morning dew on its whiskers" produces magic.
Lighting is the single biggest differentiator between average and outstanding AI images. Golden hour, dramatic side light, and soft diffused light each completely transform a scene.
Phrases like "by Greg Rutkowski", "in the style of Annie Leibovitz", or "inspired by Alphonse Mucha" instantly define an aesthetic the model already understands.
Use --ar 16:9 for landscapes, --ar 4:5 for Instagram portraits, --ar 1:1 for square thumbnails.
--ar 16:9
--ar 4:5
--ar 1:1
For photorealistic images, always add: blurry, low quality, cartoon, watermark, text, extra limbs, deformed hands to the negative field.
Wrap important terms in parentheses with a weight: (ultra detailed:1.4) emphasises detail; (blurry:0.3) de-emphasises blur.
(ultra detailed:1.4)
(blurry:0.3)
Words like shallow depth of field, anamorphic lens flare, 85mm portrait lens, and film grain lend images a professional, editorial quality.
Generate a result, identify what's off (wrong lighting? too cluttered?), then add or remove specific keywords in your next run. Small edits often produce the biggest improvements.
DALL·E 3 understands full natural language sentences much better than keyword lists. Write it like a brief to a human illustrator for best results.
Use the Save as TXT button in our tool to build your own prompt library. Reusable modifiers and style formulas save hours of trial and error on future projects.
Whether you're a seasoned designer or picking up AI art for the first time, a dedicated prompt generator shortens the learning curve and improves output quality immediately. Here are the most common use cases:
Rapidly prototype concepts and create reference images to speed up the illustration pipeline.
Generate unique thumbnails, social post visuals, and blog header images without expensive stock photography.
Create lifestyle product images and marketing visuals at a fraction of the cost of a photoshoot.
Produce book covers, character concept art, and scene illustrations to match a creative vision.
Draft character designs, environment art, and texture references during the concepting phase.
Produce branded visuals, ad creatives, and presentation illustrations at scale and speed.
An AI image prompt is the text description you send to a model like Midjourney or DALL·E to tell it what to generate. The model interprets every word, so precision matters enormously. Adding "golden hour lighting" versus "studio lighting" produces completely different images even with an identical subject. A well-crafted prompt can be the difference between a blurry, generic output and a portfolio-worthy piece.
Yes — completely free, with no account required. You can generate as many prompts as you like without any limits or paywalls. The tool runs in your browser and does not store your input.
The tool generates optimised prompts for Midjourney v6, DALL·E 3 (available via ChatGPT Plus, the OpenAI API, and Microsoft Copilot), and Stable Diffusion XL. The "Generic" output also works well with Adobe Firefly, Leonardo.AI, Ideogram, Playground AI, and most other image generation platforms.
A negative prompt tells the AI what not to include in the image. For example: "blurry, low quality, extra fingers, watermark, text". Negative prompts are especially important in Stable Diffusion, where they can dramatically reduce common artefacts like distorted faces or unnatural anatomy. Our tool includes a dedicated negative prompt field and copies it alongside your main prompt when you click "Copy with Negative".
There's no hard rule, but a good benchmark is 20–80 words for Midjourney and Stable Diffusion, and one to three sentences for DALL·E 3. Too short and the model fills in blanks you didn't intend; too long and terms can conflict. This generator is tuned to hit the sweet spot automatically based on your inputs.
The prompts this tool generates are yours to use however you like — including commercially. Note that the images you subsequently create with those prompts are subject to the terms of service of the platform you use (Midjourney, OpenAI, Stability AI, etc.). Always check the relevant platform's commercial use policy.
Use the AI image prompt generator at the top of this page to build your first prompt in under a minute — no sign-up needed.