Achromatic

Achromatic provides Next.js 15 SaaS starter kits designed to streamline the development of modern web applications. Key features include:

• Authentication: Comprehensive implementation with email/password, social sign-in (Google, Microsoft), and multi-factor authentication (MFA/2FA).
• Billing & Payments: Secure payment processing with billing portal, subscription management, and restricted access based on subscription tiers. Future support for credits and metered billing.
• Multi-Tenancy: Built-in organization support with member management, invitations, and customizable roles.
• Database: Options for Prisma or Drizzle ORM.
• Design System: Utilizes Shadcn UI and Tailwind CSS for responsive design and theming.

Use cases include rapid prototyping of SaaS applications, building scalable platforms with user authentication and subscription models, and creating internal tools with role-based access control.