20xdev is a production-ready B2B SaaS starter kit built with Next.js 15, Convex, and WorkOS. It provides everything you need to launch a modern SaaS application: authentication, organization management, real-time data, payments, and more.

20xdev is open source and free to use for any project. You only pay for the services you use (Convex, WorkOS, Stripe, etc.) based on their pricing tiers. Most have generous free tiers for getting started.

WorkOS provides enterprise-grade authentication with SSO, SCIM, and directory sync out of the box. This makes 20xdev ideal for B2B SaaS where your customers need to connect their identity providers.

While 20xdev is optimized for B2B with organization management and enterprise auth, you can adapt it for B2C use cases. The core architecture, real-time backend, and payment integration work great for any SaaS.

Convex provides automatic real-time subscriptions. When data changes in the database, all connected clients update instantly without any additional configuration. No WebSocket setup or state management required.

Yes! 20xdev includes production essentials: TypeScript for type safety, ESLint for code quality, proper error handling, secure authentication, and a scalable architecture. Deploy to Vercel with one click.

20xdev uses Tailwind CSS and shadcn/ui components. Customize the theme in your CSS variables, or modify individual components. Everything is unstyled by default and designed to be extended.

20xdev integrates with Stripe for payments. Handle one-time charges, subscriptions, usage-based billing, and customer portals. Webhook handlers and billing state management are included.