Stable Diffusion Prompt Generator Online

Stable Diffusion is a powerful AI image generation model that can create amazingly realistic and creative images from text prompts. However, writing effective prompts can be challenging. This is where online prompt generators come in handy.

Prompt generators are tools that help you create better Stable Diffusion prompts. They suggest keywords, styles, and techniques to include in your prompt to get better results from Stable Diffusion.

In this article, I’ll showcase some of the best free online Stable Diffusion prompt generators available and provide prompt examples to spark your creativity.

Why Use a Prompt Generator?

Here are some of the key benefits of using a prompt generator:

  • Save time – Prompt engineering can take a while to master. Generators give you prompt ideas instantly.
  • Discover new techniques – Generators suggest prompts using advanced techniques you may not know about.
  • Improve results – Carefully crafted prompts lead to better end images from Stable Diffusion.
  • Easy to use – Many generators provide a simple text box to enter your prompt concept.

So if you’re new to Stable Diffusion or looking to level up your prompt skills, be sure to try out a prompt generator.

Key Features of Prompt Generators

When evaluating which prompt generator to use, look for these useful features:

  • Intuitive interface – Easy to enter your desired image concept.
  • Diverse prompt styles – Options for detailed prompts with styles, lighting, etc.
  • Helpful recommendations – Suggestions to improve your initial prompt.
  • Shareable prompts – Ability to copy full prompts to use in Stable Diffusion.
  • Active development – Regular updates with new AI capabilities.

Next, let’s explore some of the top free online Stable Diffusion prompt generators available today.

Top Prompt Generators to Try

Here are some of my favorite free prompt generators to help create better Stable Diffusion prompts:


PromptHero offers an elegantly simple prompt generator for Stable Diffusion.

Key features:

  • Sliders to control prompt properties like quality, lighting, detail
  • Options for different styles like fantasy, anime, steampunk
  • Prompt intensity control from tame to wild
  • Handy prompt sharing and editing features

Example prompt:

(masterpiece), Beautiful elf princess in a magical forest, intricate flowing dress, highly detailed face, by Ross Tran and Greg Rutkowski and Alphonse Mucha, trending on artstation HQ

This produces an elf princess with vivid colors and lighting emerging from the magical forest.

Stable Diffusion Web

Stable Diffusion Web has an advanced prompt builder with handy sections for different prompt components.

Key features:

  • Sections for base image, styles, details, etc.
  • Option to view just part of the prompt
  • Produces long, heavily-structured prompts
  • Includes negative prompt helper

Example prompt:

(masterpiece:1.1), (Ultra HI Res:1.2)||| Beautiful face sphere landscape. Add some details : (Amazingly beautiful female elf with long ears and sparkling eyes wearing a crown made of branches and flowers. Flawless skin glowing with health and vitality. Intricate dress made of leaves, petals and vines. Background is a lush magical forest with sunlight streaming through the trees. Tiny glowing fairies are fluttering around. Extremely detailed. Trending on ArtStation.) ||| Show the rest of the content : (Digital painting by Artgerm and Greg Rutkowski, featured on ArtStation.)

This structured example produces an elf queen in a forest scene with fairies under the trees.


The SocialBu AI prompt generator creates prompts personalized for your input text.

Key features

  • Analyzes your input text to suggest personalized prompts
  • Supports Stable Diffusion and other models
  • Options for detailed or simple prompts
  • Creates prompts for image concepts related to your text

Example prompt

An oil painting of a wise old wizard casting a spell, trending on artstation.

This prompt matches the fantasy theme from the input text.

Prompt Engineering Tips

When using a prompt generator, also try adding your own customizations to further improve prompts.

Here are some handy prompt engineering techniques to experiment with:

  • Add styles – Styles like “Impressionist oil painting” or “3D CGI render”
  • Increase detail – (Extremely detailed), (Intricately detailed)
  • Enhance quality – (Masterpiece), (Featured on ArtStation), (Best quality)
  • Change lighting – Backlit by sunrise, Cinematic lighting
  • Include moods – Serene, Joyful, Atmospheric
  • Remove flaws – No scanning defects, No pixelated faces

Take the base prompt from a generator, then customize it with styles, details, and artistic touches to make it your own unique creation.

Before You Generate

Once you have your prompt, here are some final tips before generating your image with Stable Diffusion:

  • Check prompt length – Stable Diffusion has token limits.
  • Try different seeds – Change random number seeds for variation.
  • Upscale images – Use AI upscalers like Topaz Gigapixel.
  • Combine methods – Merge prompts from different generators.

So grab your favorite prompt generator and start creating your own breathtaking Stable Diffusion artworks!

Useful Websites: