Open source and free shadcn templates using Boilerplate

SaaS Boilerplate is a comprehensive, production-ready starter kit built with Next.js, TypeScript, Tailwind CSS, and shadcn/ui, designed to accelerate the development of full-stack SaaS applications. This enterprise-grade boilerplate comes packed with essential features including Clerk authentication for secure user management, multi-tenancy support for serving multiple organizations, role-based access control (RBAC) for granular permissions, internationalization (i18n) for global markets, and a stunning landing page template to convert visitors. The technical stack includes Drizzle ORM for type-safe database operations, Vitest and Playwright for comprehensive unit and end-to-end testing, Sentry for error tracking and monitoring, and a flexible architecture that supports rapid customization and scaling. Pre-configured with development best practices like ESLint, Prettier, TypeScript strict mode, and automated CI/CD workflows, this boilerplate eliminates months of initial setup work. Perfect for startup founders, development agencies, and enterprise teams building B2B SaaS platforms, the template includes database migrations, email templates, billing integration hooks, analytics setup, and logging infrastructure, providing everything needed to launch a scalable SaaS product while maintaining code quality and developer experience throughout the development lifecycle.

Basejump is a Supabase extension providing production-ready authentication, team accounts, billing, and permission management through database-level schemas and helper functions. The MIT-licensed project extends Supabase with multi-tenant architecture supporting team creation, member invitations, role-based permissions, and subscription billing all managed through PostgreSQL schemas and Row Level Security policies. Built specifically for Supabase projects, Basejump eliminates the need to build common SaaS infrastructure by providing database migrations for account management, team hierarchies, billing integrations, and access control that work seamlessly with Supabase Auth. The extension includes TypeScript client libraries, React hooks for easy frontend integration, and comprehensive documentation for implementing team-based applications where users belong to multiple organizations with different permission levels. Perfect for B2B SaaS platforms, collaborative tools, agency portals, or any application requiring sophisticated multi-tenant architecture with team accounts, role-based permissions, and subscription management built directly into the Supabase database layer.