AI tools
Image Prompt Generator
Turn a one-line idea into a rich, comma-structured prompt for Midjourney, DALL·E, Stable Diffusion or any image model. Pick a style, medium, lighting, shot, mood, palette and detail level, then copy the finished prompt — with optional Midjourney parameters. The biggest difference between a flat AI image and a striking one is usually the prompt: text-to-image models reward concrete visual language, so naming the camera, the light, the composition and the color story gives the model the cues it needs. This free image prompt generator stacks those descriptors in a proven order so you can explore variations fast instead of staring at a blank field. Everything runs in your browser.
Build your image prompt
Your image prompt will appear here as you fill in the options.
Paste into Midjourney, DALL·E, Stable Diffusion or Leonardo. Tweak the subject line for variations.
How the image prompt generator works
Image models respond best to prompts that read like a stacked list of descriptors. This tool starts with your subject, then appends each chosen attribute — style, medium, lighting, shot, mood, palette and detail — as a clean, comma-separated clause. Empty options are dropped, so the prompt stays tight.
Prompt structure
[subject], [style], [medium], [lighting], [shot], [mood], [palette], [detail] Midjourney mode also appends: --ar [ratio] --v 6Only filled-in fields are added. Generic mode keeps the comma list with no parameters.
Tips for better images
- Be concrete in the subject — name the object, setting and time of day.
- Don't over-stack conflicting styles (e.g. "pixel art" + "photorealistic").
- For Midjourney, the
--arand--vflags belong at the very end — this tool places them there automatically.
Example output
Suppose you want a moody hero image for a travel blog. You type "a lone lighthouse on a rocky coast at dawn" as the subject, then choose Cinematic style, 35mm film medium, Golden hour lighting, a Wide shot, a Serene mood, Cool blues, Highly detailed (8k), a 16:9 ratio, and switch the platform to Midjourney. The generator outputs:
Generated image prompt
a lone lighthouse on a rocky coast at dawn, cinematic, 35mm film photograph, golden hour lighting, wide establishing shot, serene and peaceful, cool blue tones, highly detailed, sharp focus, 8k --ar 16:9 --v 6In Generic mode the same selections produce the comma list without the flags, and the aspect ratio is written out as "16:9 aspect ratio" so models like DALL·E and Stable Diffusion can read it as plain language. Building the prompt this way lets you A/B test one variable at a time: keep everything fixed and swap "golden hour lighting" for "moody low-key lighting," or change "cinematic" to "watercolor," and you immediately see how a single descriptor reshapes the whole image.
Frequently asked questions
How do you write a good image prompt?
Lead with a clear subject — name the object, the setting and the time of day — then stack descriptive modifiers for style, medium, lighting, composition, mood, color palette and detail level. Image models read these as a weighted list, so the more concrete and visual your words, the closer the result. Avoid vague adjectives like "nice" or "cool" and instead use photographic and art terms such as "golden hour," "wide establishing shot" or "muted pastel palette."
What do Midjourney parameters like --ar and --v mean?
They are command flags that go at the end of a Midjourney prompt. --ar sets the aspect ratio (for example --ar 16:9 for widescreen or --ar 9:16 for vertical), and --v selects the model version (such as --v 6). This tool appends both automatically when you choose the Midjourney platform, so you never have to remember the exact syntax or where the flags belong.
What details improve AI-generated images the most?
Lighting and composition usually have the biggest impact. Specifying "dramatic rim lighting" or "soft diffused lighting" changes the mood instantly, and a defined shot like "close-up portrait" or "aerial top-down view" controls framing. After that, a consistent color palette and a detail cue such as "highly detailed, sharp focus, 8k" sharpen the final render. Naming a medium like "35mm film photograph" also pushes the model toward a specific texture.
Does this work with Midjourney, DALL·E and Stable Diffusion?
Yes. In Generic mode the prompt is a plain comma-separated description that works in DALL·E, Stable Diffusion, Leonardo, Adobe Firefly and most other image models. Switch to Midjourney mode and the tool adds the --ar and --v flags those models ignore. The descriptive core stays the same across platforms.
Why does my image not match the prompt?
Usually the prompt contains conflicting styles. Combining "pixel art" with "photorealistic," or "minimal" with "ultra-detailed," pulls the model in two directions. Pick one dominant style, keep the descriptor list focused, and add detail gradually. If a result is close but off, change a single modifier and regenerate rather than rewriting the whole prompt.
Is the image prompt generator free?
Yes, it is free with no sign-up and no limits. It runs entirely client-side in your browser, so your subject text and choices never leave your device.