Stable Diffusion Negative Prompt Generator
Upload a reference image — get positive and negative prompts with (weighted:1.2) syntax ready for AUTOMATIC1111 or ComfyUI.
Other models? Image to Prompt for Midjourney & FLUX →
1 · Image
2 · Goal
3 · Notes (optional)
0/500
Generated prompt appears here
Upload an image and hit generate
Upgrade your limits
1 credit = 1 generation. Go unlimited with Pro or buy credit packs.
Pro
$9/month
- ✓ Unlimited generations
- ✓ Batch image processing
- ✓ Pro options
Pro Annual
$79/year
- ✓ Everything in Pro
- ✓ Best value
Or pay as you go
Starter
$1.99
50 credits
Pro Pack
$4.99
200 credits
Ultimate
$12.99
1000 credits
Batch image processing
Upload up to 10 images at once on Image to Prompt. Pro includes unlimited batches. Otherwise: $1.99 one-time per batch, or 10 credits.
Log in to purchase. Full pricing page →
Negative prompts for Stable Diffusion
Stable Diffusion's weighted syntax — (term:1.2) for emphasis, (term:0.8) to reduce — gives fine-grained control over generation. Our generator produces a positive prompt with quality tags and a separate negative prompt targeting artifacts likely to appear given your image's content and style.
Copy the positive prompt into your prompt field and the negative prompt into the negative prompt field in AUTOMATIC1111, ComfyUI, or InvokeAI.
FAQ
Why do Stable Diffusion prompts need a negative prompt?
Unlike Midjourney or DALL-E 3, Stable Diffusion relies on negative prompts to suppress common artifacts — bad anatomy, blurry output, watermarks, extra fingers, and low quality. A dedicated negative block dramatically improves results.
What syntax does the negative prompt use?
Weighted token syntax: (worst quality:1.4), (bad anatomy:1.3), blurry, watermark — plus content-specific negatives identified from your image. Compatible with SD 1.5, SDXL, and SD 3.5 in AUTOMATIC1111 and ComfyUI.
Is it free?
Yes. Guests get 3 free generations per day. The output includes both positive and negative prompt blocks, clearly separated for copy-paste.