Civitai

Civitai serves as a community platform for sharing and discovering Stable Diffusion resources, covering model checkpoints, LoRAs, textual inversions, hypernetworks, aesthetic gradients, and VAEs alongside the images and workflows people create with them. Members create accounts, upload models, post generated images with their prompts and settings, and use comments and reviews to help others judge what to download. Beyond the hosted service at civitai.com, the platform itself is open source: the codebase is a full-stack TypeScript application built on Next.js with tRPC for the API layer, Prisma over PostgreSQL for data, Mantine for the UI, and Cloudflare object storage, and it runs locally with Docker for development. The source is released under the Apache 2.0 license. Its audience ranges from hobbyists browsing for models to fine-tuners publishing LoRAs and developers studying how a production-scale generative AI community site is built.