Stable Diffusion Prompt Generator

Generate optimised Stable Diffusion prompts with tags and negative prompts

What do you want to generate?*

Model Type

Style / Aesthetic

About This Tool

Stable Diffusion responds to a different prompt style than other AI art tools — it thrives on weighted tags, LoRA triggers, and negative prompts. Our Stable Diffusion Prompt Generator builds complete, model-optimised prompts with the right tag ordering, quality boosters, and negative prompt exclusions for crisp, professional results.

How to Use the Stable Diffusion Prompt Generator

1Describe what you want to generate.
2Select your model type for optimised tag formatting.
3Add a style or aesthetic (optional).
4Click Generate to receive a complete positive and negative prompt.
5Copy both prompts into your Stable Diffusion interface.

Frequently Asked Questions

What is a negative prompt in Stable Diffusion?

A negative prompt tells Stable Diffusion what NOT to include. Common negative prompt terms: 'ugly, deformed, blurry, low quality, bad anatomy, extra limbs, watermark, text, nsfw'. Quality negative prompts dramatically improve output by steering the model away from common failure modes.

Does tag order matter in Stable Diffusion prompts?

Yes — Stable Diffusion weights earlier tags more heavily. Put your most important elements first (subject, quality modifiers), then style, then environment, then fine details. This is different from Midjourney which reads prompts more holistically.

What are quality booster tags?

Tags like 'masterpiece, best quality, highly detailed, 8k, sharp focus, professional' improve overall image quality for most checkpoints. For SDXL, use 'masterpiece, professional, extremely detailed' rather than resolution tags.

What is a LoRA in Stable Diffusion?

A LoRA (Low-Rank Adaptation) is a small model file that specialises the base checkpoint for a specific style, character, or subject. Triggered with syntax like '<lora:filename:0.8>' in your prompt, they let you add consistent artistic styles or specific characters to any generation.

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