https://github.com/d8ahazard/sd_smartprocess

Intelligent cropping, captioning, and image enhancement.

https://github.com/thygate/stable-diffusion-webui-depthmap-script

Creates depthmaps from the generated images. The result can be viewed on 3D or holographic devices like VR headsets or lookingglass display, used in Render or Game- Engines on a plane with a displacement modifier, and maybe even 3D printed.

https://github.com/KutsuyaYuki/ABG_extension

Automatically remove backgrounds. Uses an onnx model fine-tuned for anime images. Runs on GPU.

https://github.com/Coyote-A/ultimate-upscale-for-automatic1111

More advanced options for SD Upscale, less artifacts than original using higher denoise ratio (0.3-0.5).

https://github.com/AlUlkesh/sd_grid_add_image_number

Add the image's number to its picture in the grid.

https://github.com/KohakuBlueleaf/a1111-sd-webui-haku-img

Image utils extension. Allows blending, layering, hue and color adjustments, blurring and sketch effects, and basic pixelization.

https://github.com/AUTOMATIC1111/stable-diffusion-webui-pixelization

Using pre-trained models, produce pixel art out of images in the extras tab.

https://github.com/GeorgLegato/Txt2Vectorgraphics

Create custom, scaleable icons from your prompts as SVG or PDF.

Example: (Click to expand:)

prompt	PNG	SVG
Happy Einstein
Mountainbike Downhill
coffe mug in shape of a heart
Headphones

https://github.com/C10udburst/stable-diffusion-webui-scripts

Simple script which resizes images by a variable amount, also converts image to use a color palette of a given size.

Example: (Click to expand:)

Disabled	Enabled x8, no resize back, no color palette	Enabled x8, no color palette	Enabled x8, 16 color palette

model used

japanese pagoda with blossoming cherry trees, full body game asset, in pixelsprite style
Steps: 20, Sampler: DDIM, CFG scale: 7, Seed: 4288895889, Size: 512x512, Model hash: 916ea38c, Batch size: 4