sb-kit is an authentication layer built for the Supabase and Next.js stack. It doesn’t limit any Supabase functionality. You can think of it as a simple add-on that helps you handle auth more easily.

I joined a university-based startup as a dev. We didn’t have a clear product direction and ran lots of experiments. That meant we often had to change our project structure and quickly build new demos. I built sb-kit during that time to make authentication simpler and faster for myself.

Since many developers are using Supabase with Next.js, I decided to clean up the code, document it, and share it publicly. Feel free to use it, and if you find anything that could be improved, please open an issue on GitHub.

Forever open source, forever free. Just wanted to share.

Thanks for reading.