Achromatic

Achromatic offers comprehensive Next.js 15 SaaS starter kits designed to significantly accelerate the development of modern web-based applications. It provides a robust foundation, allowing founders and developers to bypass the complexities of setting up core functionalities like authentication, billing, multi-tenancy, and more, enabling them to focus on their unique business logic.

The starter kits come packed with essential features:

• Authentication: A full-fledged implementation supporting email/password, social sign-in (Google, Microsoft, with options for Facebook, GitHub), multi-factor authentication (MFA/2FA) using TOTP, account linking, and session management. It includes flows for email verification, password changes, and forgotten passwords.
• Billing & Payments: Securely accept payments with a built-in billing portal where users can manage subscriptions, view transactions, and invoices. It supports restricted access based on subscription tiers and offers billing granularity (per organization or per seat). Future updates will include credits and metered billing, crucial for AI applications.
• Multi-Tenancy: Robust support for organizations, including member management, invitations with role assignments, and the ability to transfer ownership. This allows users to invite, join, and switch between multiple organizations seamlessly.
• Design System: A flexible and responsive design system built on Shadcn UI, Tailwind CSS, and Lucide Icons. It ensures mobile-friendly interfaces and supports beautiful light and dark themes that users can toggle. The high code quality is maintained with strict TypeScript and ESLint rules.
• Database: Offers starter kits for both Prisma and Drizzle ORMs, providing flexibility in database choices.
• Marketing Pages: Includes pre-built landing pages to showcase products and convert users effectively.
• Mailer & Templates: Tools for sending professional, good-looking emails to customers.
• Analytics & Monitoring: Features for tagging events, tracking user behavior, and monitoring application errors.
• Documentation: Provides product documentation to help users get started quickly.

Achromatic is trusted by over 450 founders and developers, offering a one-time purchase model for unlimited projects. Priced at $180, it's significantly more affordable (40-70% less) than comparable Next.js starter kits, with no hidden fees. The license grants lifetime access, updates, and permits usage for both personal and commercial projects with no restrictions on the number of developers. It's estimated to save over 220 hours of development time, making it an invaluable asset for rapid SaaS development.