Flux Prompt Generator
The Flux Prompt Generator composes an image prompt for Flux. Describe the subject, style, lighting, composition and mood; set an aspect ratio and negatives; and copy a prompt in Flux's exact syntax. Everything is generated locally in your browser.
Negative prompt: low quality, blurry, distorted, watermark, text, extra limbs
A great Flux image starts with a well-ordered description: subject first, then style, lighting, composition and mood. This generator walks you through each of those and emits a prompt in the syntax Flux expects, so you spend less time wrestling with wording and more time iterating on the image.
How to use the Flux Prompt Generator
- Describe the subject, then its style, medium, lighting and composition.
- Set an aspect ratio and list anything to avoid as negatives.
- Copy the prompt in Flux's syntax straight into the tool.
Common use cases
- Generate concept art, thumbnails or hero images for a project.
- Explore a visual style quickly by varying one descriptor at a time.
- Build a repeatable Flux prompt template for a consistent look.
Tips
- Flux responds well to natural-language descriptions rather than keyword soup.
- Be specific about composition and lighting — Flux renders fine detail and text cleanly.
- State the aspect ratio in words if your front-end doesn't accept flags.
Frequently asked questions
Is anything sent to a server? +
No. The prompt is assembled entirely in your browser from your inputs — nothing is uploaded, and no AI API is called. It is a deterministic builder, so the same inputs always produce the same prompt.
Does this generator create the image? +
No. It writes a text prompt in Flux's syntax that you paste into Flux to generate the image — it never renders or uploads anything.
Can I use the generated images commercially? +
That depends on Flux's own licence, not on this tool — check Flux's terms. The prompt itself is yours to use freely.