Detailed Comparison 2025

BuilderKit vs Supastarter

Compare BuilderKit and Supastarter side-by-side. We've analyzed features, pricing, and capabilities to help you choose the best boilerplate for your SaaS project.

Quick Overview

Best Value
BuilderKit screenshot

BuilderKit

BuilderKit.ai is a boilerplate / starter‑kit built with Next.js + Supabase + Tailwind CSS + TypeScript, aimed at helping developers launch AI‑powered SaaS/web applications quickly. Rather than being a minimal template, BuilderKit comes pre‑wired with modules and features that cover many needs for an AI SaaS: authentication (email, Google auth, magic‑link), payments (via Stripe or LemonSqueezy), email integrations, admin dashboard, SEO‑friendly landing pages & waitlist pages, and even pre-built AI‑app demos. On top of that, BuilderKit bundles 10‑15+ ready-to-use AI tools / applications: for example chat, image generation, PDF‑chat, voice transcription, image‑enhancing / upscaling, and more, so you don’t just get a skeleton, but a suite of working AI‑powered features you can build on or customize. he code is distributed via a GitHub repo, and once set up (with environment variables, dependencies installed, etc.) you can run and deploy the app commonly on platforms like Vercel.

$99
by Vatsal Sanghvi
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Key Features

AuthenticationStripeAdmin PanelDashboardSubscriptions
Supastarter screenshot

Supastarter

SupaStarter is a top-quality, full-featured SaaS boilerplate designed to accelerate web application development by providing a robust, production-ready foundation. Frequently updated to stay aligned with the latest technologies, SupaStarter is trusted by many successful projects and hundreds of developers worldwide. It seamlessly integrates authentication, role-based access control, team and multi-tenant management, and secure payment and subscription handling with popular providers like Stripe, Lemon Squeezy, and Polar. Supporting modern frontend frameworks such as Next.js and Nuxt 3, with TypeScript, Tailwind CSS, and Radix UI components, it delivers a responsive, customizable interface including dark mode. The backend features fully typed APIs, ORM integration with Prisma or Drizzle, background job support, cron automation, and built-in internationalization (i18n). SupaStarter also includes prebuilt landing pages, marketing pages, legal templates, and email templates, enabling developers to focus on core business logic rather than repetitive setup. With a one-time purchase and scalable architecture, SupaStarter ensures fast, maintainable, and reliable SaaS deployments for MVPs or full-scale applications.

$349
by Jonathan Wilke
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Key Features

AuthenticationStripeDashboardSubscriptionsBlog

Feature-by-Feature Comparison

Feature
BuilderKit$99
Supastarter$349
Price$99$349
DeveloperVatsal SanghviJonathan Wilke
Authentication
Stripe Integration
Paddle Integration
Lemon Squeezy
Dodo Payments
Polar
Creem
Admin Panel
User Dashboard
Subscriptions
Blog
SEO Optimized
Documentation
Support
Tailwind CSS
API
Two-Factor Auth
Multi-Tenancy
Teams
Shadcn UI
View DetailsView PageView Page

BuilderKit vs Supastarter: Detailed Analysis

When choosing between BuilderKit and Supastarter, it's essential to understand the key differences that make each boilerplate unique. Both are excellent choices for building SaaS applications, but they cater to different needs and development approaches.

What is BuilderKit?

BuilderKit.ai is a boilerplate / starter‑kit built with Next.js + Supabase + Tailwind CSS + TypeScript, aimed at helping developers launch AI‑powered SaaS/web applications quickly. Rather than being a minimal template, BuilderKit comes pre‑wired with modules and features that cover many needs for an AI SaaS: authentication (email, Google auth, magic‑link), payments (via Stripe or LemonSqueezy), email integrations, admin dashboard, SEO‑friendly landing pages & waitlist pages, and even pre-built AI‑app demos. On top of that, BuilderKit bundles 10‑15+ ready-to-use AI tools / applications: for example chat, image generation, PDF‑chat, voice transcription, image‑enhancing / upscaling, and more, so you don’t just get a skeleton, but a suite of working AI‑powered features you can build on or customize. he code is distributed via a GitHub repo, and once set up (with environment variables, dependencies installed, etc.) you can run and deploy the app commonly on platforms like Vercel.

Developed by Vatsal Sanghvi, BuilderKit has become a popular choice among developers looking for a reliable starting point for their SaaS projects.

What is Supastarter?

SupaStarter is a top-quality, full-featured SaaS boilerplate designed to accelerate web application development by providing a robust, production-ready foundation. Frequently updated to stay aligned with the latest technologies, SupaStarter is trusted by many successful projects and hundreds of developers worldwide. It seamlessly integrates authentication, role-based access control, team and multi-tenant management, and secure payment and subscription handling with popular providers like Stripe, Lemon Squeezy, and Polar. Supporting modern frontend frameworks such as Next.js and Nuxt 3, with TypeScript, Tailwind CSS, and Radix UI components, it delivers a responsive, customizable interface including dark mode. The backend features fully typed APIs, ORM integration with Prisma or Drizzle, background job support, cron automation, and built-in internationalization (i18n). SupaStarter also includes prebuilt landing pages, marketing pages, legal templates, and email templates, enabling developers to focus on core business logic rather than repetitive setup. With a one-time purchase and scalable architecture, SupaStarter ensures fast, maintainable, and reliable SaaS deployments for MVPs or full-scale applications.

Created by Jonathan Wilke, Supastarter offers a robust foundation for building scalable SaaS applications.

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Payment Integration: BuilderKit vs Supastarter

When building a SaaS application, choosing the right payment integration is crucial for monetization success. Let's compare the payment options available in BuilderKit and Supastarter.

BuilderKit Payment Options

BuilderKit supports Stripe and Lemon Squeezy. This includes Merchant of Record (MoR) options that handle global tax compliance automatically, making it easier to sell internationally without worrying about VAT, GST, or sales tax regulations.

Supastarter Payment Options

Supastarter integrates with Stripe, Lemon Squeezy, Dodo Payments, Polar and Creem. With Merchant of Record support, you can focus on building your product while the payment provider handles tax compliance, invoicing, and regulatory requirements across different countries.

Key Differences Between BuilderKit and Supastarter

💰 Pricing

BuilderKit is priced at $99, while Supastarter costs $349. This makes BuilderKit the more budget-friendly option, potentially saving you 250 dollars.

⚡ Features & Capabilities

Both boilerplates include authentication systems, making it easy to implement user login and registration.

Payment processing is available in both options. BuilderKit supports Stripe, Lemon Squeezy, while Supastarter integrates with Stripe, Lemon Squeezy.

BuilderKit includes an admin panel, giving you more control out of the box.

🎯 Best Use Cases

BuilderKit

  • • SaaS startups looking for quick deployment
  • • Projects requiring authentication
  • • Teams with limited budgets

Supastarter

  • • SaaS applications needing rapid development
  • • Projects requiring authentication
  • • Teams with flexible budgets

When to Choose BuilderKit vs Supastarter

Choose BuilderKit if:

  • You're looking for the most cost-effective solution
  • You require an admin panel for managing your application
  • You want to start with BuilderKit's specific tech stack and approach
  • Your project aligns with BuilderKit's feature set

Choose Supastarter if:

  • You prefer Supastarter's specific approach and features
  • Your requirements match Supastarter's capabilities

Final Verdict: BuilderKit vs Supastarter

Both BuilderKit and Supastarter are excellent choices for building SaaS applications. Your decision should be based on your specific requirements, budget, and technical preferences.

BuilderKit is ideal if you're looking for a more affordable option with built-in authentication.

Supastarter stands out for its comprehensive feature set and is perfect for developers who need authentication.

Ultimately, both boilerplates will help you launch your SaaS product faster and more efficiently. Review the detailed comparison above, consider your project requirements, and choose the one that aligns best with your goals.

Frequently Asked Questions: BuilderKit vs Supastarter

Which is better: BuilderKit or Supastarter?

The "better" choice depends on your specific needs. BuilderKit excels in affordability, while Supastarterstands out for its feature set. Consider your budget, required features, and development timeline when making your decision.

What's the price difference between BuilderKit and Supastarter?

BuilderKit costs $99 while Supastarter is priced at $349. That's a difference of $250. Both are one-time payments with no recurring fees, making them cost-effective long-term investments for your SaaS project.

Can I switch from BuilderKit to Supastarter later?

While technically possible, switching boilerplates mid-project is challenging and time-consuming. Each boilerplate has its own architecture, dependencies, and patterns. It's best to carefully evaluate both options now and choose the one that best fits your long-term needs to avoid costly migrations later.

Do BuilderKit and Supastarter offer similar features?

Both boilerplates offer core SaaS features, but with different implementations and additional capabilities. Check the detailed feature comparison table above to see exactly which features each boilerplate includes. Key differences include payment integrations, authentication systems, and admin panel availability.

Which boilerplate is better for beginners?

For beginners, consider factors like documentation quality, community support, and code complexity. Both BuilderKit and Supastarter are designed to be developer-friendly, but your choice should depend on your familiarity with their respective tech stacks and the learning resources available.

Are there any hidden costs with BuilderKit or Supastarter?

Both boilerplates are one-time purchases with no recurring licensing fees. However, you may incur costs for third-party services they integrate with (like payment processors, email services, or hosting platforms). These operational costs are separate from the boilerplate purchase and apply to any SaaS application.

How long does it take to launch with BuilderKit vs Supastarter?

Both boilerplates significantly reduce development time compared to building from scratch. Depending on your customization needs, you could launch a basic SaaS product in days or weeks rather than months. The exact timeline depends on your specific requirements, team size, and development experience.

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