Stablecog is a free, open-source AI image generator that runs leading open models — Stable Diffusion XL, FLUX and Kandinsky among them — behind a deliberately simple web interface: describe anything, pick a style, and get your art in seconds.
Built by an independent developer and fully open source, Stablecog strips away the complexity that makes most Stable Diffusion front-ends intimidating. There are two clear starting points — generate from a text prompt, or start from an existing image and restyle it — plus thousands of style combinations to explore. Because the project is open, self-hosters can run the same stack themselves, while the hosted version at stablecog.com is the fastest way in: no installation, no GPU, and free to try.
Under the simple surface sit the controls enthusiasts actually need: negative prompts, seed control, image sizes and sampler choices, exposed without clutter. The catalogue rotates current open models — Stable Diffusion XL for general work, Kandinsky for painterly styles, FLUX for prompt fidelity — and a public gallery shows what the community is making with them. Because the entire stack is open source, developers can inspect it, contribute, or deploy a private instance for a team or school, something almost no other free generator allows.
The hosted app also remembers your recent creations, supports one-click downloads without watermarks, and works comfortably on mobile browsers — small touches that make it an easy recommendation when someone asks where to try AI art first.
Stablecog is free to use. An optional Pro subscription adds higher generation limits and a smoother, ad-light experience for heavy users.
Stablecog suits beginners taking their first steps with AI art, open-source fans who value transparency, and anyone who wants quick SDXL/FLUX generations without signing up for a heavyweight platform.