BrandKitOne logo in, a whole brand kit out.

A self-hosted Flask app that turns a single image into 45+ production-ready sizes for web, social, mobile and print — with AI background removal, colour analysis and PNG/JPG/WebP/ICO output. No accounts, no uploads to anyone else's server.

Get started

What is BrandKit?

View on GitHub

📐

45+ formats, one upload

Open Graph cards, favicons, app icons, Instagram posts, hero banners, ebook covers, A4 print. Pick a category or search the catalogue — every size is defined in a JSON file you can edit.

Browse the catalogue

✂️

AI background removal

rembg strips the background locally with u2net, then you composite onto a solid colour, a gradient, or keep transparency. Edge smoothing, auto-crop and drop shadows included.

How it works

🎨

Real image preprocessing

Hue shift, colour temperature, saturation, contrast, sharpening, vignette, watermarking, blur and noise reduction — applied once, before every format is rendered.

All the knobs

🔒

Runs on your own box

CSRF protection, rate limiting, a strict Content Security Policy, mandatory EXIF stripping and no third-party CDN calls. Your images never leave the container.

Security posture

🐳

Docker in one command

docker compose up -d and you have it on :8000. Or pip install -r requirements.txt and python app.py for local hacking.

Run it

⚡

Cached and memory-aware

Processed images are cached by content hash, old uploads are swept on a schedule, and psutil-backed memory checks keep large batches from blowing up the process.

Performance notes

60 seconds to your first brand kit

bash

git clone https://github.com/fabriziosalmi/brandkit.git
cd brandkit
docker compose up -d --build
# open http://localhost:8000

Drop in a logo, tick the formats you want, hit Generate, download the ZIP. That is the whole product.

What you get back

A single archive containing every selected format in every selected output type, named predictably (<yourlogo>_website.png, <yourlogo>_favicon.ico, …), plus a preview grid in the browser so you can check each crop before you download.

Where to go next

If you want to…	Read
Get it running	Getting started · Docker
Understand the UI	The generation workflow
Add or resize a format	Configuration
Call it from a script	HTTP endpoints
Put it on the internet	Deployment
Know what happens to your images	Privacy
Report a vulnerability	Security policy