What is BuilderKit?

BuilderKit is a Next.js SaaS boilerplate and AI starter kit that bundles TypeScript-based, modular NextJS code, pre-built apps, and documentation.

It includes AI modules for chat, text generation, image generation, speech-to-text, and text-to-speech with integrations for GPT-4, Claude, Mistral, Llama, Whisper, Deepgram and other major models.

Integrates with Supabase/Postgres for authentication and storage, Stripe and LemonSqueezy for payments, Resend and Loops for email, and supports Vercel deployment and edge functions.

Provides landing and waitlist pages, an admin dashboard, SEO-optimized UI components, automated sitemap generation, and demo apps to accelerate development of production-ready AI SaaS.

Built with Tailwind CSS and shadcn components, server-side rendering, clean typesafe code, realtime webhooks, and upload/media handling for maintainable, extensible codebases.

Target users include React/Next.js developers and startups seeking a deployable boilerplate with authentication, payments, analytics hooks, and extensible AI workflows.

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BuilderKit's key features

Modular Next.js TypeScript boilerplate with SSR, edge functions, pre-built components, landing pages, admin dashboard, and deployable codebase
Built-in AI modules: chat, text generation, image generation, speech-to-text, and text-to-speech
Integrations with major AI models and services (GPT-4, Whisper, Deepgram, Claude, Llama, Mistral, Pinecone, Stable Diffusion)
Authentication, payments, email, and support integrations (Supabase/GAuth/magic link, Stripe, LemonSqueezy, Loops, Resend, Crisp)
Supabase Postgres backend with typesafe schema, row-level security, realtime webhooks, and media upload support

BuilderKit use cases

Build a production-ready AI SaaS product using BuilderKit's TypeScript Next.js boilerplate with prebuilt AI chat, text, image and speech modules, Supabase/Postgres auth and storage, payments integration and deployment support to launch quickly without wiring infrastructure
Develop a multi-tenant, SEO-ready web app with server-side rendering, realtime webhook integrations, media upload handling and model integrations for personalized user experiences, leveraging demos and modular code to iterate fast
Create a monetized developer tool or marketplace by combining BuilderKit's payment flows, demo-ready UI templates, AI content-generation modules and model integrations, plus auth/storage and deployment support to go from prototype to paying customers rapidly